China Custom 99.9% N2o Gas Filling Into 40L Cylinder vacuum pump booster

Product Description  Model Number: ISO219-40-150valve:QF-2CMaterial: Steel 37Mnnew seamless steel gas cylinder for N2,O2 Industrial nitrogen GasPressure: HighPlace of Origin: China (Mainland)Brand Name: DSWThickness of seamless:5.7mmweight of seamless: 47to...