... 3.Reasonable structure 4.Application:Td75,DTII,DTIIA,etc belt buckle frame 1.Corrosion resistant 2.Revolves smooth3.Reasonable ... ;1800,2000,2200,2400, etc 3.Belt type:sailcloth belt, nylon belt, polyester belt, steel-cord belt 4.Apply scope:Metallurgy, Coal, Transportation ... accurate carbon steel pipes ensure the rollers with low vibration and noise· Multi-labyrinth seals achieve waterproof and dust ...