... smooth 3.Reasonable structure 4.Application:Td75,DTII,DTIIA,etc paint roller frame 1.Corrosion resistant 2.Revolves smooth3.Reasonable structure 4 ... ,2200,2400, etc 3.Belt type:sailcloth belt, nylon belt, polyester belt, steel-cord belt 4.Apply scope:Metallurgy, Coal, Transportation ... each idler frames ranges from 900 mm to 1500 mm Roller· Distance are generally fixed at 1 meter to 1.5 ...