ISBN: 9787508321301 - national professional training tutorial: boiler operators (basics)(chinese edition) (1 risultati)

paperback. Condizione: New. Paperback. Pub Date: 2004 07 Pages: 116 Publisher: China Electric Power Press national vocational qualification training materials. boiler operator: basics the Boiler Operators national occupational standards supporting vocational skills certification training tutorials. The main contents include career overview. professional ethics. and career basics. this is essential knowledge Boiler Operators level practitioners. National vocational qualification training materials boiler operatives: basi. …