Shall consist of clean, unalloyed, uncoated copper scrap clippings, punchings, bus bars, commutator segments and wire not less than 1/16 of the inch thick, free o burnt wire which is brittle;
此要求是干净
,未经包裹
纯粹
片、
屑、汽车门闩、换向器切片,且
厚度
少于1/16英
,
烧易碎
;