Quality inspection of large castings pulley pulleys, Bushes cast only after the final inspection process in order to meet the requirements of its conclusion, such a request to load test procedures and technical specifications, one of its content is not allowed to appear on casting defect type, extent occur, and even inspection and methods are also included in the specification. Pulleys work best when combined with a pulley guards often used in the coal industry drilling Bushes manufacturers, whenever at work, drilling team will use Bushes angle steel, iron, and other materials with mesh , produced in line with mine safety standards pulley rig safety shield, which is why? Because clutch pulley rig shield during use due to stress or severe shock deformation take place, and could not be fully protective, clutch pulley motor output shaft leakage easily cause injury to personnel. Plus the pulley security guard tackled the technical problems plagued the safe operation of the European standard Bushes, effectively improving the safety and reliability of underground drilling rig, improve work efficiency and ensure the safety of personnel. Dezhou Hengda Machinery Welcome to cooperate with you! Large Bushes _ Hengda Machinery (certified) _ Bushes provided by Texas Hengda Machinery Co., Ltd .. Texas Hengda Machinery Co., Ltd. (www.sddzhdjx.com) (www.sddzhdjx.com) is Dezhou, machining leader, over the years, the company is implementing the scientific management, innovation and development, the principle of honesty and trustworthiness, and satisfy customer needs. Hengda Machinery leadership in the staff warmly welcome all inquiries negotiations to create a better future Hengda machinery.