We offer heavy copper scrap shall consist of miscellaneous, unalloyed copper scrap having a nominal 96% copper content (minimum 94%) as determined by electrolytic assay should be free of the following; excessively leaded, tinned, soldered copper scrap; brasses and bronzes; excessive oil content, iron and non-metallic; copper tubing with other than copper connections or with sediment; copper wire from burning, containing insulation; hair wire; burnt wire which is brittle; and should be reasonably free of ash. hydraulically briquettes copper subject to agreement.