Updated Sep 11, 2026 · Public platform & industry data

Sep 11, 2026 Updated

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2026 Top 10 Window Of Opportunity Manufacturers in China Shandong

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Top-rated Window Of Opportunity suppliers, How to choose a Window Of Opportunity manufacturer, Best Window Of Opportunity companies in China

The top 10 Window Of Opportunity manufacturers in Shandong for 2026 are: Dezhou Yiwei Ventilation Equipment Co., Ltd, Guangdong Green Island Wind Air System Co., Ltd, Yucheng County Chengxin Storage Equipment Co., Ltd, Ningjing Purification Technology (Suzhou) Co., Ltd, Dezhou Tuojing Air Conditioning Equipment Co., Ltd, Dezhou Wohui Environmental Technology Co., Ltd, Dezhou Puxing Air Conditioning Equipment Co., Ltd, Shandong Yongneng Ventilation Equipment Co., Ltd, Dezhou Yixing Air Conditioning Equipment Co., Ltd, Dezhou Runyu Air Conditioning Equipment Co., Ltd. Ranked based on product relevance, certifications, company activity, and industry performance. This list is widely used for supplier comparison and sourcing decisions.

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ShandongShandong
Top 1
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Dezhou Yiwei Ventilation Equipment Co., Ltd
Overall Score4.9 / 5
Est. Date2021-06-22
Registered Capital100K CNY

Dezhou Yiwei Ventilation Equipment Co., Ltd., with its registered address at E7 Workshop, Qianmu Industrial Park, Luquan Tun Town, Wucheng County, Dezhou City, Shandong Province, is registered with the Market Supervision Administration of Wucheng County. The legal representative is Li Yunyi, and the business scope includes general projects such as fans and fan manufacturing; Sales of fans and blowers; General equipment manufacturing (excluding special equipment manufacturing); Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Manufacturing of refrigeration and air conditioning equipment; Sales of refrigeration and air conditioning equipment; Engineering management services; Sales of specialized equipment for environmental protection; General equipment repair; Retail of electronic components; Sales of metal materials; Sales of firefighting equipment; Sales of electrical facilities and equipment. (Except for projects that require approval according to law, conduct business activities independently based on the business license in accordance with the law). Core products: Window Of Opportunity, Common Flange Air Duct, Ventilation Fan

Top 2
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Guangdong Green Island Wind Air System Co., Ltd
Overall Score4.7 / 5
Est. Date2009-09-07
Registered Capital68000K CNY

Guangdong Green Island Wind Air System Co., Ltd., with its registered address at No. 15 Nanxing Road, Taicheng, Taishan City, Guangdong Province, is registered with the Jiangmen Market Supervision Administration. The legal representative is Li Qingquan, and its business scope includes general projects such as fan and fan manufacturing; Sales of fans and blowers; Manufacturing of mechanical and electrical equipment; Sales of mechanical and electrical equipment; Manufacturing of refrigeration and air conditioning equipment; Sales of refrigeration and air conditioning equipment; Manufacturing of gas and liquid separation and purification equipment; Sales of gas and liquid separation and purification equipment; Manufacturing of lighting fixtures; Sales of lighting fixtures; Sales of firefighting equipment; Research and development of hardware products; Manufacturing of hardware products; Retail of hardware products; Sales of household items; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of electric motors; Manufacturing of household appliances; Sales of household appliances; Research and development of household appliances; Mechanical equipment research and development; Home appliance installation services; Installation services for ordinary mechanical equipment; Maintenance of electronic and mechanical equipment (excluding special equipment); General equipment repair; Repair of daily electrical appliances; Indoor air pollution control; Import and export of goods; Technology import and export. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed projects: power generation business, power transmission business, and power supply (distribution) business. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Window Of Opportunity, Hot Air Curtain Machine, Aluminum Herringbone Gate

Top 3
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Yucheng County Chengxin Storage Equipment Co., Ltd
Overall Score4.7 / 5
Est. Date2010-01-04
Registered Capital6000K CNY

Yucheng County Chengxin Storage Equipment Co., Ltd., registered at Zhaolou, Jiegou Town, Yucheng County, with the registration authority of Yucheng County Market Supervision Administration and the legal representative of Zhao Shanbin, engages in the processing and sales of storage sealed doors and windows, grain blocking boards, ventilation ducts, sieve plates, etc; Sales and installation of grain blocking doors, ground cages, fans, grain walkway boards, specialized grain films, sealing grooves, grain machinery equipment, ventilation equipment, grain storage equipment, circulation fumigation equipment, and grain situation detection systems.. Core products: Window Of Opportunity, Insulated Interior Windows Of Grain Depot, Storage Equipment

TOP4
Ningjing Purification Technology (Suzhou) Co., Ltd
Overall Score4.6 / 5
Est. Date2022-12-15
Registered Capital5000K CNY

Ningjing Purification Technology (Suzhou) Co., Ltd., registered at Room 79, Building 1, Haishang Business Plaza, No. 888 Xinwu Street, Zhangpu Town, Kunshan City, registered with the Kunshan Administrative Approval Bureau, with Zhang Li as the legal representative. Its business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Engineering and technical research and experimental development; Indoor air pollution control; Environmental consulting services; Sales of greenhouse gas emission control equipment; Sales of electronic specialized equipment; Installation services for ordinary mechanical equipment; Wholesale of hardware products; Sales of metal materials; Sales of mechanical equipment; Sales of refrigeration and air conditioning equipment; Sales of gas and liquid separation and purification equipment; Internet sales (except for the sale of goods that need to be licensed); Sales of instruments and meters; Electronic product sales; Sales of specialized equipment for environmental protection; Sales of special labor protection equipment; Import and export of goods (except for projects that require approval according to law, conducting business activities independently based on the business license in accordance with the law). Core products: Window Of Opportunity, Filter

TOP5
Dezhou Tuojing Air Conditioning Equipment Co., Ltd
Overall Score4.6 / 5
Est. Date2019-06-19
Registered Capital100K CNY

Dezhou Tuojing Air Conditioning Equipment Co., Ltd., with its registered address located in the middle section of Jinguang Avenue, Luquan Tun, Wucheng County, Dezhou City, Shandong Province, is registered with the Market Supervision Administration of Wucheng County. The legal representative is Wang Wenhai, and its business scope includes the processing, sales, and installation of air conditioning equipment and components, ventilation equipment and components, purification equipment and components, environmental protection equipment and components, electromechanical equipment, mechanical equipment, water tanks, cooling towers, and fans; Sales and installation of fiberglass products, aluminum alloy products, valves, steel, insulation boards, pipes and fittings, fire-fighting equipment and accessories, and metal products (excluding precious metals); Civil air defense engineering construction; Construction labor subcontracting. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Window Of Opportunity, Surface Cooler, Water Tank

TOP6
Dezhou Wohui Environmental Technology Co., Ltd
Overall Score4.5 / 5
Est. Date2018-05-10
Registered Capital20000K CNY

Dezhou Wohui Environmental Technology Co., Ltd., with its registered address at 208 Honghai Road, Songwangzhuang, Luquan Tun, Wucheng County, Dezhou City, Shandong Province, is registered with the Market Supervision Administration of Wucheng County. The legal representative is Li Xiaoyan, and the business scope includes general projects such as technical services, technology development, technology consulting, technology exchange, technology transfer, and technology promotion; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Manufacturing of refrigeration and air conditioning equipment; Sales of refrigeration and air conditioning equipment; Fan and fan manufacturing; Sales of fans and blowers; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of general components; Motor manufacturing; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Sales of valves and plugs; Sales of metal materials; Sales of rubber products; Sales of non-ferrous metal alloys; Retail of hardware products; Sales of metal fittings for construction; Sales of building materials; Sales of fireproof sealing materials; Sales of power electronic components; Sales of mechanical parts and components; Sales of plastic products; Sales of firefighting equipment; Sales of metal structures; Sales of enamel products; Sales of instruments and meters; Sales of anti-corrosion materials; Sales of spray guns and similar equipment; Sales of electrical equipment; Sales of security equipment; Sales of insulation materials; Sales of fasteners; Sales of special equipment; Installation services for ordinary mechanical equipment; External contracting projects; Import and export of goods; Technology import and export; Import and export agency. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license) Licensed project: Manufacturing of civil air defense engineering protective equipment; Construction project construction; Construction labor subcontracting; Electrical installation services. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Window Of Opportunity, Damper, Air Conditioning Unit

TOP7
Dezhou Puxing Air Conditioning Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2019-06-26
Registered Capital100K CNY

Dezhou Puxing Air Conditioning Equipment Co., Ltd., with its registered address located in the middle section of Jinguang Avenue, Luquan Tun, Wucheng County, Dezhou City, Shandong Province, is registered with the Market Supervision Administration of Wucheng County. The legal representative is Li Xia, and the business scope includes the processing, sales, and installation of air conditioning equipment and components, ventilation equipment and components, purification equipment and components, environmental protection equipment and components, electromechanical equipment, mechanical equipment, water tanks, cooling towers, and fans; Sales and installation of fiberglass products, aluminum alloy products, valves, steel, insulation boards, pipes and fittings, fire equipment accessories, and metal products (excluding precious metals); Civil air defense engineering construction; Construction labor subcontracting. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Window Of Opportunity, Air Duct, Fresh Air Ventilator

TOP8
Shandong Yongneng Ventilation Equipment Co., Ltd
Overall Score4.5 / 5
Est. Date2016-10-12
Registered Capital10000K CNY

Shandong Yongneng Ventilation Equipment Co., Ltd., with its registered address located at the intersection of Jinxin Street and Honghai Road, Luquan Tun Town, Wucheng County, Dezhou City, Shandong Province, is 166 meters north of the road. The registration authority is the Market Supervision Administration of Wucheng County, and the legal representative is Shi Yanwei. Its business scope includes general projects such as fan and fan manufacturing; Sales of fans and blowers; Manufacturing of refrigeration and air conditioning equipment; Sales of refrigeration and air conditioning equipment; Manufacturing of mechanical and electrical equipment; Sales of mechanical and electrical equipment; Motor manufacturing; Sales of mechanical equipment; Installation services for ordinary mechanical equipment; General equipment manufacturing (excluding special equipment manufacturing); Manufacturing of general components; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Sales of valves and plugs; Valve and plug research and development; Wholesale of hardware products; Manufacturing of hardware products; Manufacturing of specialized equipment for environmental protection; Sales of specialized equipment for environmental protection; Manufacturing of metal products for safety and firefighting purposes; Manufacturing of fiberglass and related products; Sales of fiberglass and related products; Manufacturing of high-speed rail equipment and accessories; Sales of high-speed rail equipment and accessories; Manufacturing of plastic products; Sales of plastic products; Manufacturing of gas and liquid separation and purification equipment; Sales of gas and liquid separation and purification equipment; Manufacturing of electronic components; Wholesale of electronic components; Sales of non-ferrous metal alloys; Manufacturing of specialized machinery and equipment for water resources; Labor services (excluding labor dispatch); Import and export of goods; Technology import and export. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license in accordance with the law) Licensed project: construction project construction; Construction labor subcontracting; Manufacturing of protective equipment for civil air defense engineering; Installation of protective equipment for civil air defense engineering; Sales of civil air defense engineering protective equipment. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Window Of Opportunity, Fire Damper, Axial Flow Fan

TOP9
Dezhou Yixing Air Conditioning Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2016-05-06
Registered Capital10000K CNY

Dezhou Yixing Air Conditioning Equipment Co., Ltd., with its registered address in Dayanzhuang Village, Luquan Tun Town, Wucheng County, Dezhou City, Shandong Province, is registered with the Market Supervision Administration of Wucheng County. The legal representative is Su Guoxing, and its business scope includes the production, sales, and installation of air conditioning equipment and components, purification equipment and components, ventilation equipment and components, environmental protection special equipment and components, motors and components, pipes and fittings, fire dampers, smoke exhaust fire dampers, axial flow fire exhaust fans, centrifugal fire exhaust fans, cooling towers, and water tanks; Civil air defense engineering construction; Steel sales. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments). Core products: Window Of Opportunity, Sidewall Fan, Axial Flow Fan

TOP10
Dezhou Runyu Air Conditioning Equipment Co., Ltd
Overall Score4.4 / 5
Est. Date2021-04-06
Registered Capital6000K CNY

Dezhou Runyu Air Conditioning Equipment Co., Ltd., with its registered address located 180 meters east of the intersection of Tenglong Street and Honghai Road in Luquantun Town, Wucheng County, Dezhou City, Shandong Province, is registered with the Market Supervision Administration of Wucheng County. The legal representative is Sang Dongxian, and its business scope includes general projects such as refrigeration and air conditioning equipment manufacturing; Sales of refrigeration and air conditioning equipment; Manufacturing of specialized equipment for environmental protection; Sales of glass fiber reinforced plastic products; Wholesale of hardware products; Retail of hardware products; Fan and fan manufacturing; Sales of fans and blowers; Specialized equipment manufacturing (excluding licensed specialized equipment manufacturing); Sales of specialized equipment for environmental protection; Specialized equipment repair; Repair of metal products; Sales of metal products; Installation services for ordinary mechanical equipment; Manufacturing of ordinary valves and plugs (excluding special equipment manufacturing); Manufacturing of glass fiber reinforced plastic products; Manufacturing of security equipment; Sales of security equipment. (Except for projects that require approval according to law, business activities can be carried out independently based on the business license.) Licensed project: construction project construction. (For projects that require approval by law, business activities can only be carried out after approval by relevant departments. The specific business projects shall be subject to the approval documents or licenses issued by the relevant departments.). Core products: Window Of Opportunity, Roof Fan, Stainless Steel Fan

Detailed Manufacturer Comparison

ManufacturerEst. DateMain ProductsRegistered CapitalCustomization
Dezhou Yiwei Ventilation Equipment Co., Ltd2021-06-22Window Of Opportunity, Common Flange Air Duct, Ventilation Fan100K CNYSupported
Guangdong Green Island Wind Air System Co., Ltd2009-09-07Window Of Opportunity, Hot Air Curtain Machine, Aluminum Herringbone Gate68000K CNYNot Supported
Yucheng County Chengxin Storage Equipment Co., Ltd2010-01-04Window Of Opportunity, Insulated Interior Windows Of Grain Depot, Storage Equipment6000K CNYNot Supported
Ningjing Purification Technology (Suzhou) Co., Ltd2022-12-15Window Of Opportunity, Filter5000K CNYNot Supported
Dezhou Tuojing Air Conditioning Equipment Co., Ltd2019-06-19Window Of Opportunity, Surface Cooler, Water Tank100K CNYNot Supported
Dezhou Wohui Environmental Technology Co., Ltd2018-05-10Window Of Opportunity, Damper, Air Conditioning Unit20000K CNYNot Supported
Dezhou Puxing Air Conditioning Equipment Co., Ltd2019-06-26Window Of Opportunity, Air Duct, Fresh Air Ventilator100K CNYSupported
Shandong Yongneng Ventilation Equipment Co., Ltd2016-10-12Window Of Opportunity, Fire Damper, Axial Flow Fan10000K CNYNot Supported
Dezhou Yixing Air Conditioning Equipment Co., Ltd2016-05-06Window Of Opportunity, Sidewall Fan, Axial Flow Fan10000K CNYSupported
Dezhou Runyu Air Conditioning Equipment Co., Ltd2021-04-06Window Of Opportunity, Roof Fan, Stainless Steel Fan6000K CNYSupported

Purchasing Guide

Based on real user feedback, we provide the following suggestions:

  • When purchasing air vents, it is usually necessary to focus on product specifications, such as air volume, air pressure, noise, and other key technical parameters, to ensure that actual ventilation or smoke exhaust needs are met.
  • In different application scenarios such as industrial plants and commercial buildings, the selection of air vents should consider the material's corrosion resistance and installation method. For example, stainless steel should be used for kitchen exhaust systems.
  • When selecting suppliers, priority should be given to product compatibility, business qualifications, enterprise activity, industry performance, and enterprises with industry data support or platform statistical information.
  • For the procurement of air vents in high-rise buildings or enclosed spaces, it is recommended to combine fluid mechanics performance testing data to avoid affecting overall ventilation efficiency due to excessive wind resistance.

Knowledge Base

Q

The commonly used louver vents include single-layer louver vents and double-layer louver vents. The most cost-effective option is the louver vent made of aluminum alloy material. What is the difference between them? Below, I have summarized several aspects for everyone, hoping to be helpful to friends who are interested in this issue. 1. Different adjustment directions: The airflow adjustment direction of single-layer louver vents is one-dimensional, not

Ranking Evaluation Method

This ranking is generated based on public data from Baidu B2B platform and common industry assessment dimensions, focusing on enterprise activity, business qualifications, product matching and industry performance to provide valuable manufacturer ranking information for buyers.

DimensionDescription
Data SourceMulti-dimensional data including platform public data, enterprise certification, user reviews, and transaction records
AssessmentComprehensive indicators including enterprise activity, qualifications, product quality, service capability, and user reputation
Update FrequencyRanking data is updated daily to ensure timeliness and accuracy
SuggestionRankings are for reference only. We recommend comprehensive evaluation based on actual needs