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Seller: liu xing, Nanjing JiangSu, JS, China
paperback. Condition: New. Paperback Pages Number: 77 Language: Simplified Chinese Publisher: China Electric Power Press; 1 (April 1. 2011). Electric Power Industry Standard of the People's Republic of China (DLT 799.1-799.7-2010 instead of the DLT 799.1-799.7- 2002): The electric power industry. labor and environmental monitoring technology specification Description: The standard reference GBZ1 Design of Industrial Enterprises hygiene standards. GBZ2.1 Workplace Hazardous Occupational Exposure Limits - Part 1: chemica.