lby air coupler and plug kit,air hose fittings, industrial type c air compressor pneumatic connector, sm20/30/40+pm20/30/40 q

1.C-type air coupler and plug kit, air couplers and fittings,quick connector,prevost air couplers. | 2.Material:Iron,plating;colour: bright silver. | 3.Size : SM 20/3040, PM 20/30/40;connection tracheal mouth diameter:20mm,30mm,40mm. | 4.Contains: 3 sets 6 specifications, 3 pieces male plugs, 3 pieces female plugs. | 5.Use: widely used in pneumatic piping connecting, pneumatic tool, auto industry, mechanical engineering,systems such as air compressors, automatic manufacturing operations, aircraft controls, and tire installation in industries including agriculture, mining, road construction, all kinds of trachea joints automated mechanical equipment etc.