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          材料:38CrMoAIA 直徑:Φ20-Φ300 長徑比:L/D=15~55 調質硬度:HB240°~280°

          吹膜機機筒

          材料:38CrMoAIA 直徑:Φ20-Φ300 長徑比:L/D=15~55 調質硬度:HB240°~280°

          吹膜機 螺桿

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