金属焊接与切割作业(实际操作教材) - Tapa blanda

National special operations personnel security technical training and examination textbooks for supporting practical teaching materials: metal welding and cutting operations(Chinese Edition)

paperback. Condición: New. Paperback. Pub Date: 2008 Jun Pages: 112 Language: Chinese in Publisher: Meteorological Press national security technical training and examination of special operations personnel textbooks for supporting practical teaching materials. metal welding and cutting operations. according to metal welding and cutting operations practical training in officer safety training syllabus requirements of part written. including the actual operation of generic parts. gas welding and gas cutting jobs. SMAW ar. Nº de ref. del artículo: CB022094

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