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鑄件硬度計(jì) |
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點(diǎn)評(píng)
選擇測(cè)量標(biāo)準(zhǔn),,然后把那只“筆”的端面放在工件上,,筆中心會(huì)彈出來一根針,打到工件上,,硬度就會(huì)在顯示器上顯示出來
這種硬度計(jì)準(zhǔn)確嗎,?
請(qǐng)問大俠,這個(gè)硬度計(jì)具體如何使用
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