... couplers 1. British, Germany, Italian, Australian, Japanese style.... 2. forged or pressed 3.48.3mm 1. Material: Q2352. Size: 48 ... dip galvanized.4. British type drop forged double coupler weight: 1.05kg,British type pressed double coupler weight: 0.82kg5. Standards: BS1139, ... AS1576 standard couplers, Germany, American, Brazilian style couplers.....etc Forged or Pressed British Q235 Swivel Coupler