... 3-5 layers 3. Convinent installation 4. OEM Belt conveyorHongji belt conveyer that is widely used in mining, metallurgy, ... structure, high standardization degree etc, and the belt conveyers. The belt conveyer can be used to transfer bulk materials ... belts, bears the alkali acidproof belt conveyor, the oil resistant conveyor belt, the patterned conveyor belt and so on. Competitive steel belt conveyor