Beijing Shengtian Piping Trading co.,ltd

We are a company specializing in producing various seamless steel pipes. For many years, we have  been devoted to technical innovation and improvement of product quality. We passed the ISO9001:2000 international quality system certification 2004 API 5l US 2008?? ...

Telephone：86 - 010 - 67729355Address：huateng guoji,dajiaoting Beijing Beijing 100022 China