Assist in cleansing utensils and equipment. 協助清洗設備及用具。
On completion of the stripping activity all the surfaces within the enclosure must be thoroughly cleaned using purpose designed and approved vacuum cleaning equipment. 當剝離作業完成之時，必須採用專門設計並經批准的真空清洗設備徹底清洗封閉設施內的所有表面。
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電信業務許可證編號：滬B2-20190700
