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锟斤拷號 | 規锟斤拷叽锟mm | 锟窖積锟斤拷锟斤拷 只/m3 | 锟饺憋拷锟斤拷e m2/m3 | 锟斤拷隙锟斤拷% | 锟斤拷锟斤拷锟斤拷锟斤拷锟斤拷m-1 |
锟斤拷50 | 50*50*1.5 | 6500 | 108 | 94 | 131 |
锟斤拷76 | 76*76*2.5 | 1930 | 80 | 95 | 80 |
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