In fact, many customers do not know the pump tube, the pump tube we do a simple overview: the ground pump tube wear-resistant tube, the other pump tube is also divided into high-pressure pump tube and low-pressure pump tube; there is a point that can be explained in the general manufacturer The low pressure is only the difference between the flanges at both ends, the high pressure flange is 157mm and the low pressure is 148mm. What is the difference between the pump tube and the pump tube? Different company products are