The ring can be locked and lead seal.
外壳罩圈具有锁紧及加铅封的功能。
Seal up the material and equipment that lead to or may lead to occupational-disease-inductive accidents;
封存造成职业病危害变乱或者有可能导致职业病危害变乱发生的材料和设备；
But at the same time lead to seal damage.
但这同时也导致密封的破坏。
But at the same time lead to seal damage.
但这同时也导致密封的破坏。
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