Screw and barrel raw material:38CrMoVAlA,with nitrid treatment. 2)Screw and barrel cooling:Fan cooling 7178788094934171783-blid-4408771136592176521

30 ธันวาคม 62 ชนะแน่นอนสำหรับคุณ ผลในเชิงบวก

 
   
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