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SOM???????壬??????????????t???????????????????????????????*????????????????塣SOM??壬??GRC?????????????????TJ,???г??TJ?塣
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1????????£????????0.11w/m.k
2???????????????4С??????A1??????
3???????屢??????47Kg/?O????а?????????
4???????壺??????5MPa?????
5???????????????38DB?????
6??????????????????????к???????
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