At PASSIONHOSE, technology improvement and innovation are our core advantages. Since established, we have been focusing on developing new products, improving product quality, and serving customers. twin line welding hose If you are interested in our new product twin line welding hose and others, welcome you to contact us. produces twin line welding hose in strict accordance with national standards, and the produced twin line welding hose is non-toxic, harmless, environmentally safe, and of high quality, so you can buy and use it with confidence.