COMPANY ORIENTATION: Yangquan SLS International Trade Co.,Ltd,which was founded in 2003,is a professional manufacturer & exporter of the Ductile Iron Pipes& Fittings,Flange,Concrete pump parts,Construction machinery accessories,Refractory materials. Our staff generally have more than 5 years' working experience in foreign trade .We are confident that we can provide excellent service for every customer. Our competitive items are Delivery pipe, Ductile Iron Pipe&Fittings,Elbow, ...