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我们在住宅楼工程安装的门锁多为“弹子插芯”门锁。经一段时间的施工使用,门锁已经损坏多把。经检查发现,是扳手背面一个金属钢片因承受不了扳手扭矩而断裂,使扳手失灵。
Most of the door locks that we install in the residential building project are “marbles”. After a period of construction and use, locks have been damaged more. The inspection found that the wrench is a metal sheet on the back of the wrench torque can not afford to break, so wrench failure.