... coated. Painting: At least 5 times paintings.Absolutly rust-resistant.Mterials: Carbon steel, Q235. Rubber belt. Belt materials ... conveyors High temperature, cold weather, exploration-resistant, fire-resistant, acid-resistant, alkali-resistant ,waterproof and alike condition should take some ... trough, a funnel and so on) Under-pit explosion-proof belt conveyor machinery for coal mining industrial use