量程:-0.1~0.1MPa精度:2.5级测压元件:铜合金焊接方式:加银锡焊密封性能:漏气率 1 10-9Pa m3/s外壳材质:碳钢喷黑塑机芯:铜合金Range:-0.1~0.1MPaAccuracy:Cl.2.5PressureMeasuringElement:CopperAlloyWelding:Tin-SilverSolderSealability:LeakRate 1 10-9Pa m3/sCaseMaterial:CarbonSteelwithBlackEnamelMovement:CopperAlloy