3610| 6
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45鋼無縫管159*22,調(diào)質(zhì),,抗拉強度能達到700N/mm2 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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