发布时间:2025-02-05 09:19:11
1、KP1多孔砖规格是240*115*90,则80万砖体积为0.24*0.115*0.09*800000=1987.2立方。 2、KM1多孔砖规格是190*190*90,则80万砖体积为0.19*0.19*0.09*800000=2599.2立方。
平顶山舅舅为小孩定制隔间学习桌日常为孩子选择书桌的时候要注意什么
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