5 When a piton is intentionally removed it should be replaced with a fixed hanger or ringbolt.
5 When a piton is intentionally removed it should be replaced with a fixed hanger or ringbolt.
5为某因素而特意移除岩钉时,应以固定耳片或环形锚栓加以更换。
5 When a piton is intentionally removed it should be replaced with a fixed hanger or ringbolt.
5为某因素而特意移除岩钉时,应以固定耳片或环形锚栓加以更换。