Mahsulot tavsifi
Information about the basics and principles of standardization and certification, types and levels of standardization, national standardization systems, and more
#standartlashtirish#sertefikatlashtirish#asoslar
Muallif
PRO TALABATasdiqlangan muallif
- Hujjatlari
- 116 840
- Sotilgan
- 2 816
