燃气用户安装检修工 - Tapa blanda

Gas users installation Maintenance Workers professional training materials for employees of gas management enterprises(Chinese Edition)

paperback. Condición: New. Paperback. Pub Date: 2017-08-01 Pages: $number Language: Chinese Publisher: China Construction Industry Press. Gas users installation and maintenance workers gas operating enterprise professional training materials for employees Based on the development and application of gas industry in China. the basic theory and basic knowledge of installation and overhaul of gas users are systematically and concisely described. Nº de ref. del artículo: DP050665

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