Theory and practice of welding [filem]

Ижил төстэй зүйлс

• Welding : theory and practice/
  -н: Directorate General of Employment and Training
  Хэвлэсэн: (1985)
• Welding : theory and practice /
  -н: Olson, David L., зэрэг
• Consumable guide welding [filem]
  -н: Welding Institute
  Хэвлэсэн: (1966)
• Pulse welding techniques [filem]
  -н: The Welding Institute
  Хэвлэсэн: (1965)
• Friction welding at work [filem]
  -н: The Welding Institute
  Хэвлэсэн: (1976)