硬度笔-FMH 5

Hardness Tester-FMH5

本硬度笔是将硬度计中的：磷灰石-5、正长石-6、石英-7、黄玉-8、刚玉-9，五种矿石分别镶在五根金属杆上用来刻画预测样品，根据样品上的划痕来判断硬度。

This hardness pen is the hardness meter: apatite-5, orthofeldspar-6, quartz-7, topaz-8, corundum-9, five kinds of ore are inlaid on five metal rods to depict the prediction sample, according to the scratches on the sample to judge the hardness.

重量Weight：102g