Isbn: 9787502033231 - 【旧书二手书九成新】 煤矿职工岗位行为规范：机电专业 9787502033231 煤炭工业出版社 (1 resultados)

paperback. Condición: New. Pages Number: 179 Publisher: Coal Industry Pub. Date :2009-06-01 version 1. This book is the code of conduct post mine workers series is one of the summary of coal mine safety in production. based on lessons learned from actual combat perspective. in simple language mechanical and electrical posts of mine to shift from a succession of acts of the various operational aspects of the operation of specific provisions. is the job of operating coal mine electrical code of conduct. Through the study.…