1)Flexible stainless steel gas hose gets CSA approved; 2)Professional hoses manufacturer in China; ... gas, petroleum liquefied gas, natural gas, oil, water. Features: 1. Gas hose for indoor and outdoor gas pipings; 2. High ... tie-in has airproof tightened metal tapers screw thread, the hose will not wear out; 4. Easy to install and ... such as gas, petroleum liquefied gas, natural gas, oil, water.