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ǩΪ͸| ʱ䣺2019-07-31

Ҫú֧͵֧ʱ֧.л͸к״ݱڵҺѹ̶֧

͸ֲΪ27SiMn100mm90mm 8mmȸ 45mmȷΪ9.6m9.86m

͸͸ָѹӶɱΪ 20.4kg/m ʵΪ19.2kgݲ27SiMn.Χ 26׶ʱͻ˵ҪߴǮ

½Ӷڦ͸.Ϻ塢Ҷ塢ͷűɵ.֧Ʒ֢ͺʮε.

ע

1زΪ700mmʱĻغɣ

20.7kg/m.

3ͺŹÿ200mmӢٸ

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