SWL screw lift Check related equipment: (1) the cement / raw mill, whether they have to start slow driving conditions, safety cover is fixed or screw lift the relevant industry standards: JB / T 8809-1998 SWL worm screw lift type, parameters and Size JB / ZQ 4391-86 QWL worm gear screw lift mobility type and size. Screw screw worm screw lift lifts, endurance transmission specialist (certification), screw lift provided by the Texas Haokun Machinery Co. Texas Haokun Machinery Co., Ltd. (www.sdnljsj.com) (www.sdnljsj.com) is a leader in Dezhou, reducer, transmission, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Endurance leadership with the staff warmly welcome all inquiries negotiations to create a better future for endurance.