一(yi)要看(kan)(kan),看(kan)(kan)有無質(zhi)量體系認(ren)證書(shu);看(kan)(kan)合格證是(shi)(shi)否規范;看(kan)(kan)有無廠(chang)名、廠(chang)址、檢驗章、生(sheng)產日期;看(kan)(kan)電(dian)(dian)線(xian)上是(shi)(shi)否印(yin)有商標、規格、電(dian)(dian)壓等。還要看(kan)(kan)電(dian)(dian)線(xian)銅(tong)(tong)芯的橫斷面(mian),優等品紫銅(tong)(tong)顏色光亮、色澤柔(rou)(rou)和,否則(ze)便(bian)是(shi)(shi)次品。二要試(shi),可取一(yi)根電(dian)(dian)線(xian)頭用手反復彎曲,凡是(shi)(shi)手感柔(rou)(rou)軟、抗...
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