Do not open the valves with spanners.
不要用扳手打开阀门。
Wrenches (spanners) must not be used if its jaws are sprung, worn or cracked. They may slip off a bolt or nut when you least expect it.
如果扳手(扳钳)的钳夹出现变形、磨损或裂纹，则不宜再使用。它们可能会在您始料未及之时导致螺栓或螺帽滑脱。
The utility model relates to a measuring standard device which is matched with GNJ-50, 250 and 500 type torque calibration instruments and used for checking various torque spanners.
本实用新型涉及一种与GNJ - 50、250、500型扭矩校准仪配套的，用于检定各种扭力扳手的计量标准装置。
We specialize in manufacturing of complete range of hand tools, specially Spanners made from Chrome Vanadium Steel.
我们专业生产全系列的手工具，特别是各种铬钒钢材料的扳手。
We specialize in manufacturing of complete range of hand tools, specially Spanners made from Chrome Vanadium Steel.
我们专业生产全系列的手工具，特别是各种铬钒钢材料的扳手。
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