1328| 4
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求橡膠件耐油性能試驗(yàn)的評(píng)價(jià)標(biāo)準(zhǔn) |
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點(diǎn)評(píng)
這個(gè)只有試驗(yàn)方法,想知道有沒有評(píng)定標(biāo)準(zhǔn),比如試驗(yàn)件變形多少才算合格不合格,不知道有沒這個(gè)標(biāo)準(zhǔn)?
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