Ndai madang hpe ya aten na Miwa mungdan a madang hte maren, magri hte magri n-gun dat htu shapraw ai hte galaw shapraw ai arung arai ni a tsi mawan ni hpe jai lang ai lam hte maren galaw da ai rai nna, dai gaw GB/T468-1997 "Wan jak lang na matu magri n-gang ni", GB/T3952-1998 Bille Urets "Copper for GB/T467-1997 "Hpaji -san seng ai Cathode Magri" hte "Madang tsaw ai Cathode Magri", hte GB/T5231-2001 "Hpaji rawng ai Magri hte Magri Hkrang" ni hpe madung tawn nna, "Chemical Composition hte Product Shape" hpe madung tawn nna, GBChemical1911 hpe npawt nhpang tawn da ai. Hka hte magri n-gang ni hpe sawk sagawn ai ladat ni" hte GB/T13293-1991 "High-Purity Cathode magri a matu Chemical sawk sagawn ladat ni" hpe hkrang shapraw nna bai gram lajang ai. Hpa majaw nga yang, n hkru n kaja ai hte n hkru n kaja ai sawk sagawn ladat ni hpe galai shai na matu, rawt jat galu kaba wa ai sawk sagawn ladat ni hpe jai lang nna, hydride byin pru wa ai - n bra mat ai atom nhtoi htoi ai spectrometry hpe jai lang nna, arsenic, antimony, selenium, telluventical red methoven, etc. inductive hku matut mahkai ai plasma atom n-gun dat spectrometry sawk sagawn ladat hte mercury sawk sagawn ladat, etc.
