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Quick comparison

YSYM512
Copper
YSYM1024
Nautical Steel
YSYM2048
Aerospace Titanium
Fire resistance 1.085°C 870°C 1.700°C
Fresh water 75% 95% 100%
Salt water 40% 80% 100%
Collapse 90% 95% 100%
Passage of time 80% 100% 100%
Numeric encryption
Crypto security course
Price 89 € 99 € 149 €