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Wallchart of average crystallity of metals (GBT6394-2017) 12
Wallchart of average crystallity of metals (GB/T6394-2017) 12
1 No crystals without a twin (slight corrosive) 100 times.
2 Dinosaurs. 100 times.
3 Dinosaurs with crystals (deep contrast corrosion) 75 times.
4 Austrocin crystals in steel (carbon seepage) 100 times.
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