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| ???? ????? | ?? | ? | ???? ??? | ?? |
| ??? | ??? | ? | ???? | 2 ???? |
| ?????? | -70-1000c | ? | ????? | 10-50 ?? |
| ??? ???? | 180~210kg/m3 | ? | ???? ???? | ??? |
| ????? | ??? ??? | ? | ??? | ?? |
| ????? ??? | ???? | ? | ???? ???? | ?? ????? |
| ???? ???? | ???? | ? | ??? | ??? |
| HS ?? | 7019909000 | ? | ????? ??? | 30000PCS/??? |
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