... ", 3". 4". 6" Pin Lug Hose coupling We are Fuzhou Hongxing Machinery Co., Ltd. in Fuzhou, Fujian Province, China. We ... aluminum, brass and stainless steel.,guillemin coupling, Bauer type coupling, chicago coupling, Ground joint coupling, sandblast coupling, Kingcombination nipple, DIN2817 safety clamp, ... washdown gun, etc.Pin-lug hose shank ( swivel nut coupling, Male Groove Plug) 1. Sizes:From 1-1/2 ...