1.SNS,a leading manufacturer in China 2.brass fitting,pneumatic fitting with high quality 3.Varies Series 4.Best price brass fitting,pneumatic fittingFeatures:Media: compressed air, vacuumProof pressure: 1.32MpaPositive pressure: 0-0.9MpaNegative pressure: -99.99-0MpaAmbient & fluid temperature:0-60oCRecommended tubes: Urethane tube, Nylon tuneΦD1:6ΦD2:4 brass fitting,pneumatic fitting