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勾花护栏网的平米重和平米成本的计算
作者:  来源:  发表时间:2011-09-03 18:49:32  点击:55
计算公式:
平米重(kg)=丝直径×丝直径×1.29÷孔径
平米成本(元)= 平米重×丝单价+加工费+流通费
举例说明:
例如:5cm×5cm的孔,丝径为2.3mm,平米成本价(元)=2.3×2.3×1.29÷5×3.45元+0.25+0.5元=5.46元/m2
 

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