Agate—Beihong agate—Testing
全国珠宝玉石标准化技术委员会(SAC/TC 298)
本标准规定了北红玛瑙的鉴定特征及鉴定方法。本标准适用于北红玛瑙的原料及产品。
This standard is the original Chinese electronic standard.
After you successfully purchase, we will send the electronic version of this standard to your email address.
If you have successfully purchased, please go to the plug-in category of the store and download the free plug-in installation package.
If you need translation, please contact email: ChineseStandardsLibraryS001@gmail.com.
