Welding is a high-risk task, as any leakage of flammable gases like acetylene can cause environmental pollution and rapid fire spread, leading to serious injury or property damage. With ZJHose oxygen and acetylene hoses, you don’t have to worry about these risks. Our hoses are manufactured to strict fire-proof standards, our twin welding hoses are flame retardant, and our oxygen acetylene hoses feature excellent air permeability, eliminating the risk of leakage.