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caocao4735(½ð±Ò+1):thank you for the answer 2010-12-03 21:07:09
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caocao4735(½ð±Ò+1):thank you for the answer 2010-12-03 21:07:09
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Supposing the pouring temperature is the same, there are three possibilities: (1) A has higher cooling rate than B (by different mold, water cooling or something else); (2) A uses better and/or more master alloy than B; (3) A uses more effective vibration technology (mechanical, ultrasonic, electrical magnetic or something else) than B. |

9Â¥2010-12-03 20:16:29
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2Â¥2010-12-03 11:20:31
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3Â¥2010-12-03 14:12:25
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4Â¥2010-12-03 14:30:11














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