Astm a500 150×150 steel square pipe supplier - China Manufacturers, Factory, Suppliers

We now have our individual sales group, layout team, technical team, QC crew and package group. Now we have strict high-quality control procedures for each procedure. Also, all of our workers are experienced in printing discipline for Astm a500 150×150 steel square pipe supplier, Welded Steel Pipe Vs Ductile Iron Pipe , Galvanized Steel Pipe Hawaii , Square Pipe Uses , With strong technical strength and advanced production equipment, and SMS people purposefully , professional, dedicated spirit of enterprise. Enterprises took the lead through the ISO 9001:2008 international quality management system certification, CE certification EU ; CCC.SGS.CQC other related product certification. We look forward to reactivating our company connection.