... products are elbows, tees, bends, reducers, caps, flanges and sockets. We have been in this line for about ... caps ,weldedn neck flanges ,slip on flanges ,blind flanges ,seamless steel pipes ,welded steel pipes ,square steel pipesMATERIALCarbon steel,stainless steel,alloy steelWe can produce ... :2000,API5L,,CCSWe have biggest pipe fittings and steel pipes production equipment in china,all of prodcts ...