施工升降机安装拆卸工/建筑施工特种作业人员安全技术培训教材 - Tapa blanda

Construction hoist installation and disassembly worker Heilongjiang Province Construction Safety Association(Chinese Edition)

paperback. Condición: New. Language:Chinese.Paperback. Pub Date: 2024-06 Publisher: China Building Materials Industry Press The editors of this book mainly based on the Regulations on the Management of Special Operations Personnel in Construction (Jianzhi [2008] No. 75). Implementation Opinions on the Assessment of Special Operations Personnel in Construction (Jianbanzhi [2008] No. 41). in accordance with the classification of special operations personnel in construction and Outline of Safety Technical Assessment for S. Nº de ref. del artículo: DS053207

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