wing
纵横全冰
一般可以按体积乘以密度来计算,密度按7.8t/m3。也可参考下表:Φ6:0.222Φ8: 0.395Φ10:0.617Φ12:0.888Φ14:1.210Φ16:1.580Φ18:2.000Φ20:2.470Φ22: 2.980Φ25:3.850Φ28:4.830Φ32:6.310Φ36:7.990Φ40:9.870Φ50:15.420