ISBN: 9787502154844 - 题集 油气田水处理工(下册) (1 Ergebnisse)
Vocational skills training tutorials and the identification of questions set: oil and gas field water treatment workers (Vol.2)(Chinese Edition)
ZHONG GUO SHI YOU TIAN RAN QI JI TUAN GONG SI REN SHI FU WU ZHONG XIN
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paperback. Zustand: New. Paperback Pages Number: 267 Language: Chinese. Vocational skills training tutorials and the identification of questions set: oil and gas field water treatment workers (Vol.2) Personnel Service Center of China National Petroleum Corporation. based on oil and gas transportation workers the national occupational standards. unified organization one prepared by the vocational skills training tutorials. and identification of the questions set. Vocational skills training courses and identification o.…
