The hand-cranked pencil hardness
Product Description
Technical parameter: load: 1000+/-1g: GB/T6739-86 JIS K5401 ASTMD2197 implementation of standards
The pencil and the sample angle: 45 degrees
Pencil specification: 6H-6B
Nick speed: 1mm/s
Note: the table
Detailed introduction:
Purpose: plow through broken film pencil hardness grade determination of film hardness test hardness characteristics: in the specified test conditions plow through broken film pencil hardness scale representation
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