... . British, Germany, Italian, Australian, Japanese style.... 2. forged or pressed 3. Q235 British type pressed and forged double coupler 1. Material ... : Q235 2. Size: 48.3mm/48.3mm diameter 3. Surface: electro galvanized or hot dip galvanized. 4. British ... , Germany, American, Brazilian style couplers.....etc British type drop forged 48.3mm diameter double coupler