日付	電気銅(円/kg)	銅スクラップ(円/kg)
R7/6/20	1,470	1,355
R7/6/19	1,470	1,355
R7/6/18	1,450	1,339
R7/6/17	1,450	1,339
R7/6/16	－	1,339
R7/6/13	1,450	1,339
R7/6/12	1,460	1,347
R7/6/11	1,460	1,347
R7/6/10	1,460	1,347
R7/6/9	1,450	1,339