... about 10 years' experince in belt conveyors, conveyor idler rollers, conveyor rollers, roller frame design and production. All of our products ... of the DTII rubber belt conveyors:Used range: Rubber belt conveyor used in coal, mine, metallurgy,power plant, harbon, ... , Rubber coated. Painting: At least 5 times paintings.Absolutly rust-resistant.Mterials: Carbon steel, Q235. Rubber belt. Belt materials ...