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PAIHAO：R04200,R04210,Nb1,Nb-TiBIAOZHUN：ASTM B393-05CHUNDU：≥99.95%MIDU：≥8.6 g/cm3PINGZHENGDU：≤3%GUIGE：HOUDU0.025***XIAO，KUANDU680，ZHANGDU2000。FUKUANFANGSHI：30%DINGJIN，70%FAHUOQIANFUQING。BAOZHUANGFANGSHI:...
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