... Province, China. We mainly supplycamlock couplings (cam & groove quick couplings) in aluminum, brass and stainless steel.,guillemin coupling, ... coupling, sandblast coupling, Kingcombination nipple, DIN2817 safety clamp, T-bolt superior clamp, double bolt clamp, whipcheck safetycable, washdown gun, etc. 1 ... Forging 2 StandardEN14420-3MaterialAluminiumCasting methodForgingSizes1/2" to 4" Hose clamp