ASTM A234 WPB Pipe Fittings | ASME SA 234 GR WPB Carbon Steel material
ASTM A234 WPB Pipes Fittings of Wrought Carbon Steel and Alloy Steel for Moderate and High Temperature Service | ASTM A234 butt weld pipe fittings,A182 forged pipe fittings,B16.5 weld neck flange,API 5L