For 2-sided top and bottom (the work) must require high gloss. And the two sides parallel to each other, parallel to the lower surface and upper surface of the mold must be high. For the time being an open assembly.
The method of processing: Milling milling coarse + fine.
For 4 side does not affect erection, and degree of gloss should not need high parallel
processing method: Milling of crude
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