水管材料预算计算表型号长度m保温层表面积保温层体积钢管刷漆m2管道支架kg重量kg保温层厚度保温层厚度15mm20mm25mm30mm40mm15mm20mm25mm30mm40mmDN2000000000000000DN2500000000000000DN3200000000000000DN4000000000000000DN5000000000000000DN7000000000000000DN8000000000000000DN10000000000000000DN12500000000000000DN150000000000...