1.~{IO1m2zD\DKRT~}1.6ton/m3~{1HVXJ/;RJ/N*@}~}
2.~{HkAO3_4g1XPkVAIYTZHNR;1_3_4gR*P!SZHkAO?Z3_4gV.~}0.7

~{Ht5wU{3vAO?Z?*2` ~{Tr8wVV2;M,4sP!A#6H5DM(9};}@[BJHgOB1m~} ~{A#6H4sP!~} ~{M(9}@[;}BJ~} 100 mm 78 % 50 mm 41 % 30 mm 25 % 10 mm 8 %