1.sample fee free :oxygen hose, rubber hose, welding hose 2.W.P.:20bar 3. ... .P.:60bar 4.material:fresh rubber 1.sample fee free :oxygen hose, rubber hose, welding hose 2.W.P.:20bar 3 ... ozone resistant 8.For transportation of welding gases, such as oxygen, acetylene, argon, etc.9.WORKING TEMPERATURE:-40°C up to ...