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並前往https://www.housingauthority.gov.hk/mini-site/site-safety/common/resources/safety-promotion-events/site-safety-seminars/seminar-2011-1/ppt/06.pdf

Recommended Safety Precautionary Measures and Work ...

Site Safety of Working in Lift Shaft. Committee on Construction Site Safety. Construction Industry Council (CIC). 演講者: 建造業議會. 工地安全委員會.

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