VF2378 Pencil Hardness Tester's video
16345 plays · 2016-07-16
Videos > Pencil Hardness Tester > VF2378
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Product description
TQC pencil Hardness Tester model VF2378 meets ASTM, ISO, JIS and GB/T6739-2006 pencil hardness testing standards, providing 750g standard load pencil hardness testing special instrument. VF2378 contains calibrated certificate, according to Wolff Wilborn specification measurement