We are a professional manufacturer of spiral weled steel pipes, we can supply u high quality goods with best price. 1 ... ., LTD is a professional manufacturer & exporter of LSAW steel pipe, SSAW (spiral) steel pipe, ERW steel pipe and other pipes in China, and the ... JIS standards, the factory is located in Tianjin Jinghai Development Zone, a well-known Steel City in China. If you have any questions, pls ...