Henan Liwei Pipeline Equipment Co. Ltd (the former Zhengzhou Liwei pipeline Products Co. Ltd), located at Shangjie District, Zhengzhou city, is a manufacturer specializing in processing various steam, water, wind pipe expansion joints and compensation joints, and a main base for producing rubber , metal and non-metallic pipe joints It is also the appointed enterprise by the former chemical industry ministry, national construction ministry and general petrol chemical company, member unit of ...   |