Isbn: 9787502168933 - 【二手旧书9成新】石油石化职业技能鉴定试题集：天然气净化操作工 (1 resultados)
Petroleum and petrochemical Occupational Skill Testing Question set: Natural Gas Purification operatives(Chinese Edition)
ZHONG GUO SHI YOU TIAN RAN QI JI TUAN GONG SI ZHI YE JI NENG JIAN DING ZHI DAO ZHONG XIN
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Librería: liu xing, Nanjing, JS, Chinaliu xing
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paperback. Condición: New. Paperback Pages Number: 567 Language: Chinese petroleum and petrochemical Occupational Skill Testing Question set: natural gas purification operatives is based on natural gas purification operatives Vocational Qualification Level standard by the China National Petroleum Corporation Occupational Skill Testing Center. the preparation of the unified organization Occupational Skill Testing Authority of the petroleum and petrochemical questions set in a. Petroleum and petrochemical Occupational Sk.…
