... steel couplings 1.Size: 1/8''-6'' 2.Standard: BS ANSI DIN standard 3.Certificate: ISO 9001:2008 4.Surface: black ... , g mild steel couplingsBS DIN ANSI Standard Carbon Steel Mild Steel Couplings screwed half couplingMaterialCarbon steel ... , BS, NPT, Metric, BSPT, BSP, NPS (ISO7/1, DIN 2999, ANSI B1.20.1)DimensionBS EN10241, ASTM A733, DIN2982TypeFull length,half ...