... "-72" Thickness: SCH20-XXS Material: carbon & stainless steel(seam & seamless) Qualification: API, CE, ISO9001 Carbon Steel Pipe Fitting Professionally Manufacture Of China:Tianjin ... (socket-welding); Threaded elbow, tee, reducer,cap, flangeStandardASME/ANSI B16.9, B16.11, B16.28, B16.5; MSS SP-43, 83 ... -8 A334-8 A210-C A333-1.6 A333-7.9 A334-1.6 A334-7.9EuropeSt52.4 St52 TTSt35N 10Ni14 ...