ISBN: 9787112272266 - 附着式升降脚手架架子工 (1 Ergebnisse)

paperback. Zustand: New. Language:Chinese.Paperback.Pub Date:2022-04-01 Publisher:China Construction Industry Press Attached lifting scaffolding scaffolding is an important special type of work. which is a sub-item project with high risk. and its safety production management has always been highly regarded by the government Attention. in order to strengthen the management of such operators. prevent and reduce the occurrence of production safety accidents. and promote the construction of vocational skills training. th.…