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3. Polongez et polir le rayon du filet du moule pour éviter la surface rugueuse du filet et grattez la surface des pièces estampillées de précision pendant le processus de dessin.
4. Pour maintenir la propreté de la surface de la matrice concave et convexe, la partie profonde du blanc doit être essuyée avant l'estampage de précis La surface des pièces d'estampage de précision et affectant la qualité.Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.
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Privacy statement: Your privacy is very important to Us. Our company promises not to disclose your personal information to any external company with out your explicit permission.