Belt conveyor system ,belt steel conveyor for mining conveying, metallurgical conveying. coal conveying.food conveying industry. TD- ... usage of belt conveyor, there are many kinds of conveyor belts in Hongji company, such as the ordinary conveyor, the NN ... , EP&PP conveyor belt, the heat-resisting conveyor belts, bears the alkali acidproof belt conveyor, the oil resistant conveyor ...