PE Gas Pipe 1. Smooth, No Air Bubble, No Crack 2. Explosion-proof for Coal Mining 3. Various Pressures OK Commodity: PE Gas Pipe This PE pipe falls into coal-mine water pipes, coal-mine air pipes, coal-mine use guniting pipes and coal-mine use gas drainage pipes, etc. It is mainly used for water supply, air compression, gunite as well as gas drainageProduct quality conforms to the national coal ...