... Fitting Hydraulic Quick Coupler Thread1.standard: BS, DIN ,NPT 2.ISO CIQ SGS 3. hot galv black Good quality Cast Iron Pipe Fitting Hydraulic Quick ... , plugs, backnuts, crosses over, round caps etc.Cast Iron Pipe Fitting Hydraulic Quick Coupler:Product ItemMalleable iron pipe fittings: elbows, tees, sockets, bends ... pipe lines of team, gas, oil, air Cast Iron Pipe Fitting Hydraulic Quick Coupler Thread