1.SNS, a leading manufacturer in China 2.pipe fitting,brass fitting,pneumatic fitting with high quality 3.Many series pipe fitting,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 tune pipe fitting,brass fitting