hand slide valve 1.ISO9001:2000 2.advanced CNC machine 3.1/8'',1/4'',3/8'',1/2'',3/ ... '',1'' 4.both female and male avail HSV hand slide valve -- pipe exhaust valveNBPT Pneumatic can offer a series of pneumatic ... fittings, air tube fittings, compact pneumatic fittings, hand valve, stop fittings, check valve and equivalents of Sang-A,Pisco pneumatic fittings. Features ...