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The graphite in the gray cast iron structure exists in the form of flakes, and the graphite in the ductile cast iron structure exists in a spherical shape.
3. Listen to the percussion Gray iron: the sound is low, the duration is very short. The ball iron: the sound is crisp, there is a residual sound, and the duration is shorte.
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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.