... coupler w/hose barb,quick coupler 1.air coupler,air accessory 2.Material: iron,brass,etc, 1/4"-3/8"TRUFLATE type coupler w/hose barb ,quick coupler ... ACCESSORIES ,COUPLERS,AIR PU HOSE,PRESSURE PAINT TANK,AIR ... hose) Production line( assembly) Production line ( Packing ) Manometer workshop Inspection equipment Inspection equipment Sample room Warehouse corner trifled type w/hose barb quick coupler ...