Isbn: 9787504540942 - national professional training tutorial: forging work (basic knowledge)(chinese edition) (1 risultati)

paperback. Condizione: New. Language:Chinese.Paperback to promote the forging workers vocational training and vocational skills appraisal carried out in forging the work of employees in the implementation of the national vocational qualification certificate system. Labor and Social Security Ministry of China employment training technical guidance centers in the completion of the national occupational standards - forging work (hereinafter referred to as the standard ) and standard on the basis of the development work. th.…