Optimal
Armert betong, Betong, Murstein, Takstein, Slipende
God
Fersk betong, Fersk betong (slipende), hard, Fersk betong (porøs), myk, Herdet betong, hard, Behandlet betong, middels, Behandlet betong, myk, Behandlet betong, porøs
Akseptabel
Asfalt
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