... noise, corrision resistance 3.invironmetal protection Aipu Environmental Protection Technology Co., Ltd is located in the Yangtze River Delt, the ... have covered Jinagsu,Zhejiang and Shanghai,and are spreading to Beijing, Shanxi, Shandong, Jilin, Liaoning, Heilongjiang, Henan,hebei, Hunan ... services, our company is insisting on the policy that technology and quality is the origin, customers come first. ...