refractory concrete block
... 预制混凝土砌块 precast concrete segment 耐火混凝土砌块 refractory concrete block 普通混凝土砌块 normal concrete block ...
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而用加气混凝土砌块和空心砖砌筑的隔墙因为其耐火和隔热性能良好也被广泛应用。
Partitions of lightweight precast concrete blocks and hollow clay blocks have fire-resisting qualities and contribute to thermal insulation. They are, therefore, widely used.
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