替代品：1.高級陰極銅，符合國標GB/T467-1997高純陰極銅規定；
2.LME註冊陰極銅，符合BS6017-1981和AMD5725標準（陰極銅級別代號CU-CATH-1)
就知道這些了啊``````````密度不知道啊```````````集裝箱是啥啊```````````不知道````````妳問了三個回答上來二了````````不算壹問三不知````````