$141.00
SE
YONGLIDA QHQ-A 750g Portable Pencil Hardness Tester meets GB/T6739 standard
1±0.05kg
Applicable to standard GB/T 6739, test angle 45 °, load 1 +/- 0.05kg, three-point contact with the measured surface roller, pencil lead.
If you don't know how to choose "Pencil Hardness Tester", please consult customer service.