13012283087 022-26911773, 022-81128858 Tianjin Zhongwang Changsheng Steel Trading Co., Ltd. specializes in various domestic and imported seamless pipes, alloy pipes, structural pipes, petroleum cracking pipes, fluid pipes, 16mn low-alloy pipes, high-pressure boiler pipes, fertilizer dedicated pipes, stainless steel pipes, stainless steel plates, round steel, and Hastelloy. Our company, through years of operation, deals with seamless pipes, alloy seamless pipes, high-pressure boiler pipes, seamless pipes for fertilizer equipment, hydraulic support steel pipes, and stainless steel pipes produced by several major domestic steel pipe factories including Chengdu Seamless Steel Pipe Factory, Baotou Seamless Steel Pipe Factory, Shanghai Baosteel, Yegang, Hengyang, etc. Shanxi Jinyuan Stainless Steel Materials Factory was established in 2001, specializing in 316L stainless steel pipes and mold steel.