发布时间:2025-01-17 17:59:49
钢板的理论重量是1mm,7.85千克/m2
1.5mm钢板理论重量是=7.85*1.5=11.775千克/m2
1.5mm钢板1平方米=11.775*1=11.775千克
1·5镀锌钢板每平米是11.775千克
2020城市商业魅力排行榜正式发布 2020中国一二三四线城市名单一览
2025-01-17 17:59:49 2025-01-17 17:59:49 2025-01-17 17:59:49 2025-01-17 17:59:49 2025-01-17 17:59:49 2025-01-17 17:59:49请问成都市最集中的装修材料木工板油漆五金乳胶漆批发市场在哪里
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