5517| 8
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求問現(xiàn)在六角棒的生產(chǎn)工藝還停留在冷拔嗎,?有出現(xiàn)新的設(shè)備嗎? |
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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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