樓主: 曉夏2019
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耐磨鋼材 |
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點(diǎn)評(píng)
Mn13型高錳鋼
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點(diǎn)評(píng)
釬桿就是42crmoa的料。力量使用方試不一樣,。釬桿是液壓沖擊,。主要是液壓達(dá)到破碎目的。
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