Type A stainless steel quick coupling 1.Material :AL 2.Size:1/2"-6" ... DIN 4.Casting Method:Gravity castin Camlock quick coupling Type AMaterial:AL,stainless steel, brass, PP, Nylon Size:1/2" 3/4 ... :Gravity castingSurface Treatment: Grind, Oidation, Sand blastThreads:BSP,NPT DIN Type A stainless steel quick coupling