PPH-500 Pencil Hardness Tester's video
NBCHAOVIDEO8239 plays · · 2018-07-26
The MODERNER PPH-500 Pencil Hardness Tester is designed to meet the GB/T6739 standard and is used to test the hardness value of coatings. The PPH-I 500 Pencil Hardness Tester comes standard with 13 hardness pencils.
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