Accessories: reinforce hinge, various locks, handle, peepholes and doorbells.
附件：加强铰链，各种门锁，拉手，窥视孔和门铃。
most parlors have outer doors with peepholes, and some have closed-circuit security cameras, gamblers say.
大部分麻将馆都装了带窥视孔的外门，有的有闭路保安摄像机，赌客们说。
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