Articles liés à Textbooks for small and medium-sized coal mine safety...

Textbooks for small and medium-sized coal mine safety training: mine change (with) Electrician(Chinese Edition) - Couverture souple

WU ZHI GANG QU DONG YU

 
9787811078718: Textbooks for small and medium-sized coal mine safety training: mine change (with) Electrician(Chinese Edition)

Synopsis

Language:Chinese.No Binding.publisher:China mine big Pub. Date :2008-06-01 version 1.description:Pages Number: 276 Publisher: China Coal Mine Pub. Date :2008-06-01 version 1. This book is the national coal mine safety training for small and medium textbooks. one focuses on a coal mine safety laws and regulations. basic knowledge of coal producti

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