焊工实训一点通 - Tapa blanda

Welder training makes sense(Chinese Edition)

paperback. Condición: New. Language:Chinese.Paperback. Pub Date: 2021-10-01 Pages: 212 Publisher: Machinery Industry Press. This book is published in The Peoples Republic of China Vocational Skills Appraisal Standards (Assessment Outline): Electric Welders. the national *new Education Certificate + Certain Vocational Skill Levels Certificate (abbreviated as 1+X certificate) and Special Welding Technology Occupational Skill Level Standard assessment requirements. combined with the actual job requirements of the company. Nº de ref. del artículo: NW021772

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