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        ھDN25
        ѹ0.1-1.6MPa
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        ͺţ50-150
        ھDN50-150
        ѹ0.1-2.5MPa
        ʣ۰PVC
        1 ҳ ҳ:1/1ҳ  ҳ һҳ 1  һҳ βҳ
         
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