JY 0026-1991
Methods of type designation for producets of teaching instrument and equipment (English Version)
- Standard No.
- JY 0026-1991
- Language
- Chinese, Available in English version
- Release Date
- 1991
- Published By
- Professional Standard - Education
- Latest
- JY 0026-1991
JY 0026-1991 history
- 1991 JY 0026-1991 Methods of type designation for producets of teaching instrument and equipment
