ISBN: 9787112268191 - 附着升降脚手架安装拆卸工 (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback.Pub Date:2022-02-01 Publisher:China Construction Industry Press. in order to strengthen safety production management. create a harmonious safety production environment. strengthen safety awareness. improve safety skills. and protect employees' health and life safety; and to further strengthen Building construction safety. improving the occupational skills and professional quality of construction operators. according to the Notice of the General Office of the Provinc. …