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The machines use the 45°slanting rail body, high tonnage, the support surface of foundation is wide(1800x4500). Use synchronous pulley to drive main shaft. It has the features of low noise, no vibration, convenient to escape of chips. It is especially... More
Drill pipes are steel tubes with threaded ends that are used to connect a drill rigs surface equipment with its drilling equipment, or bottomhole assembly, at the bottom of a well. They are used to transport drilling fluid to drill bits, and to raise... More
