... tong torque gauge 大钳扭矩量测仪 tong-torque control 大钳扭矩控制 tongpull indicator 大钳拉力指示计 ...
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The torque control valve of hydraulic tong is developed to protect the scrws of tube and suck rod from being damaged or deformed caused by over tightness.
液压油管钳扭矩控制阀用于油管和抽油杆上螺纹时控制其扭矩值 ，以免扭矩过大而损坏螺纹或造成本体变形。
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