Pipe wrenches should be inspected regularly. Replace the heel and jaw section if found to be defective or worn out.
应当定期检查管钳，更换已磨损或有伤痕的钳牙及牙床。
The enterprise mainly manufactures bolt cutters, pipe wrenches, captive hand tools most other pipeline products, including pipe clamp production scale ranks first in the country counterparts.
企业主要生产断线钳、管子钳、掳手极其它管道工具的系列产品，其中管子钳生产规模居全国同行之首位。
It is forbidden to throw steel pipe, steel, wrenches and other materials and tools, so as not to destroy the waterproof layer.
严禁抛掷钢管、钢筋、扳手等材料和工具，以免破坏屋顶防水层。
It is forbidden to throw steel pipe, steel, wrenches and other materials and tools, so as not to destroy the waterproof layer.
严禁抛掷钢管、钢筋、扳手等材料和工具，以免破坏屋顶防水层。
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