1) Type:ASTM A234 GR WPB-S PIPE FITTINGS 2) Size:NPS1/2-120 3) Varieties: STD, ... QIANDIN PIPE FITTINGS MANUFACTURING CO.,LTD.TYPEastm a234 gr wpb-s pipe fittings,seamless pipe fittings, butt welding pipe fittings, steel ... GR WPB , ST37.2 , ST35.8 , A105……STANDARDANSI B 16.9/ANSI B16.28/MSS SP43/MSS P75/JIS2311/JIS 2312 ... produce according to drawing by customers. ASTM A234 GR WPB-S PIPE FITTINGS