VF2379 Pencil Hardness Tester's video
303 plays · 2016-01-26
Videos > Pencil Hardness Tester > VF2379
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Product description
The TQC VF2379 Pencil Hardness Tester has not yet been required by international standards. The film industry and LCD industry enterprises extend the hardness testing method of 500g test load from JIS-K5600 (ISO 15184), according to the Wolff Wilborn specification measurement