13621658160 Shanghai Rui years of the company is the design, production and sales of high-tech companies, in the "adhere to continuous improvement, continuous improvement, innovation, perfect, perfect after-sales service to customer satisfaction," the quality and production policies. Supply without power natural ventilation (without power hood, flue hood and flue typhoon, no power of natural ventilation fans, electric fans do not, no power ventilation air ball cap, roof exhaust fan no power, no power exhaust hood) range, Welcome to your inquiry, order! sales throughout Zhejiang, Anhui, Jiangsu, Hunan, Hubei, Henan, Hebei, Shanxi, Shaanxi, Sichuan, Inner Mongolia, Ningxia, Jiangxi, Fujian, Hainan, Guangdong, Shandong, Beijing, Shanghai, Tianjin, Yunnan , Xinjiang, Qinghai, Heilongjiang, Liaoning, Jilin, Guangxi and other provinces, no power fan, no power hood, no power of natural ventilation, flue hood, the largest manufacturer 
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