11261| 12
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焊接牢固嗎,? |
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點評
理論和實際還是有差距的,,承重大,就打坡口,別把弓拉滿了
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小黑屋|手機版|Archiver|機械社區(qū) ( 京ICP備10217105號-1,,京ICP證050210號,浙公網(wǎng)安備33038202004372號 )
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