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聚氨酯預(yù)制直埋保溫管
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  • 聚氨酯預(yù)制直埋保溫管

聚氨酯預(yù)制直埋保溫管


抗壓強(qiáng)度:徑向壓縮強(qiáng)度或徑向相對(duì)形變?yōu)?0%時(shí)的壓縮應(yīng)力不應(yīng)小于0.3MPa;

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聚氨酯預(yù)制直埋保溫管

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聚氨酯預(yù)制直埋保溫管


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