... steel pipe fittings cap 1.Manufactur and exporter 2.ISO9001/2000 3.HIgh quality and reasonaable price carbon steel pipe fittings ... cap,end cap,steel capConnectionButt WeldingStandardANSI, JIS, DINMaterialCarbon, Stainless and Alloy InspectionInternal/third partyCertificateAPI, ISO9001:2000, CCSMarkingAs per customers' ... A234 WP1, WP12, WP11, WP22, WP5, WP9, WP911, and WP91Stainless Steel Pipe fitting: