mould<br>For conventional molds, the deviation per foot should be about ± 0.001 inch; the total length deviation should not be greater than ± 0.005 inch. As for the precision grinding die, the accuracy per foot shall be ± 0.0004 inch; the total accuracy shall not be greater than ± 0.002 inch. Generally, fine grinding die is suitable for CNC bending machine; conventional die is suitable for manual bending machine.<br>
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