... cover the outer aluminum foil, while welding aluminum-plastic-compound soft tube. It can keep the filling products in good quality ... . It is widely used in the producing of products, packing soft tube such as creams, lotions including toothpaste, food, medicine, ... requirements :water pressure0.2MPa;Flow capacity3 to 5 L /minute, soft waterAir pressure requirement0.5-0.7MPa(remove water, oil)Shape ...