$172.00
SE
TRUIT TR 5100/1 Pencil Hardness Tester 500g
6B-6H（13支）500g
The load is 500g, in line with GB/T 6739, ASTM D 3363, ISO 15184 standards, with its own observation level, and the center arc design of the wheels on both sides.
If you don't know how to choose "Pencil Hardness Tester", please consult customer service.