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Occupational Skill Testing Question set: polymer preparation work(Chinese Edition)
Seller: liu xing, Nanjing, JS, China
Seller rating 5 out of 5 stars
paperback. Condition: New. Paperback Pages Number: 258 Language: Chinese. Set of vocational skills certification questions: polymer preparation work prepared by the unified organization of the China National Petroleum Corporation personnel service center occupational skill appraisal questions set in a. The book contains the polymer preparation work junior workers. intermediate and advanced workers three levels of theoretical knowledge questions and skills operating questions is an essential book for polymer preparation. Seller Inventory # MY8695