现货 GB/T 11969-2020 蒸压加气混凝土性能试验方法 代替GB/T 11969-2008
US$18.72
- 库存: 100
- 模型: 10095047064983
- 重量: 0.50kg
- 尺寸: 2.00cm x 1.00cm x 0.50cm
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