Diamond Hardness Pencil
Negotiable /Set
Min.Order:1 Set
Shenzhen Fable Jewellery Technology Co., Ltd.
Hardness Pencil Model FMH-8
Specification:
Please kindly see the grade as below:
3: Calcite.
4: Fluorite.
5: Apatite.
6: Orthoclase.
7: Quartz.
8: Topaz.
9: Corundum.
10: Diamond.