The shorehardness of materials is based on the rebound height of measuring punch pin, in practices the precision can not easily be ensured.
材料肖氏硬度是以测量冲头的回跳高度为依据，实际的测量精度不易保证。
2
Shorehardness A: 22 ISO868 (3 seconds) - Adhesion: primer in the absence of concrete, glass, metal, wood, stone, vinyl chloride on Bonding can also be ideal.
The bristles (6) have a high bristle density of at least 6 bristles per square millimeter and consist of a plastic material that has a Shorehardness D of more than 40.