ISBN: 9787111687481 - 焊工实训一点通 (1 Ergebnisse)

paperback. Zustand: 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.…