1198| 17
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見(jiàn)到好大的定位銷,,叫啥名字,? |
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點(diǎn)評(píng)
gb17是什么標(biāo)準(zhǔn)
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點(diǎn)評(píng)
贊同,。直徑大到一定程度,,長(zhǎng)度也匹配。就應(yīng)該叫定位柱或?qū)е?nbsp;
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