Residential Industrial Roof Vent Fan with ISO9001/ISO14001 Certification from Chinese

Jinan Shuangyi Environment Engineering Co., Ltd. (Shunagyi) integrates science and technology, engineering and trade together. Our main products are cooling towers, FRP products, blowers, water tanks, ventilators, ventilator pipelines, fireproofing valves, fume extract valves, lab facilities, fans, FRP lab facilities, medicine lockers, vessel lockers, reagent storage racks, enwind pipes, enwind tanks, FRP pipes, FRP tanks, FRP retainers, FRP pantiles, daylighting covers, rotproof facilities, bodyworks, auto-coverings, auto fittings, battery cars, mobile machinery shop fittings, engine room covers, hubcaps, air deflectors, architectural decorate materials, pultrusion-wood, furniture, SMC products, RTM products, garbage bins, textile machinery, air conditioning units, air-conditioners, wind screen machines, central air-conditioning and engineering machines and composite materials.

Our company has advanced equipment and we are honored as "Provincial Contract Trustworthy Enterprise" by Shandong Province Government. We have passed the authentication of Switzerland SGS, ISO9001 International Quality System and ISO14001 Environmental Management System certifications.

We boast solid capital strength, superb technology and advanced management, and we always abide by the principle of "based on the market, winning with quality, innovation and development". We continue to develop and hope to establish a new corporate image.

We have 7 subsidiary companies (branches) and an FRP Institute, such as Dezhou FRP Plant, Shuangyi Cooling Tower Limited, Shuangyi Fan Limited, Shuangyi Refrigeration Installation Limited, Yaxing Textile Machinery Manufacturing Co., Ltd. and Meihua (Dezhou) Industrial Company Limited. Dezhou FRP Plant is our core subsidiary, famous for early foundation (set up factories in 1984), large-scale, and precise products in our country.

Facing challenges in the 21st century, Shuangyi can continue to seize the opportunity of China's entry into WTO and promote our spirit of "unity, truth-seeking, high-quality and innovative". With new corporate image and superior product quality, we strive to create a brilliant future.