copper sheet(Cu62%,65%,68%70%) material: C26800,C28000,C26200,C26000 thickness: 0.8--12mm width: 400 or 600mm length: max 2m copper sheet1.standard:1).meet the technical conditions GB/T 2059-2008 and GB/T 17793-1999 standards.2).Chemical ingredients meet the GB/T 5232-2001 standard.3).in accordance with ISO9001-2000 Quality system requirements4).The special requirements will be satisfied when ...