QJ/Z 121-1983
Production instructions for lead-tin alloy coatings for printed boards (English Version)
- Standard No.
- QJ/Z 121-1983
- Language
- Chinese, Available in English version
- Published By
- Professional Standard - Aerospace
- Status
- Latest
- QJ/Z 121-1983
QJ/Z 121-1983 history
- 1970 QJ/Z 121-1983 Production instructions for lead-tin alloy coatings for printed boards
