10093| 17
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需要一種耐高溫(100℃),,強堿(30%濃度氫氧化鈉),,耐磨,,硬度高 |
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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,浙公網安備33038202004372號 )
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