| Ruler specification |
One master plate and thirteen sub plates.
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| Ruler plate material |
Special alloy material anode platings treatment
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| Ruler plate thickness Range |
According to the national standard, the thickness Range of each sub-disc laser printing
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| Center tray |
Lined with soft cotton cushioning foam to prevent scratches on the ruler plate, external plastic hard box card position Encasement
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| chamfering |
Each sub-plate and master plate lining are CNC numerical control fine grinding chamfer treatment to ensure leveling accuracy
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