Dear Sir/Madam, I want to buy used Japan or Russia industrial gas cylinder with specification as below : water cap.          : 40.2 litre gas cap.              :6 m3 outside diametter : 232mm Length                : 1190 mm weight                 :  46 kgs Filling pressure    : 150 kg/cm2 Test pressure      : 250kg/cm2. Quantity per month 01 container 20 feet .