Maererano nemishumo, 15 huru yekuvaka pamwe nemakambani epamba muJapan munguva pfupi yapfuura akazivisa kukwira kwemitengo kunosvika 40%, zvakanyanya nekuda kwekukwira kwemitengo yezvinhu zvakabikwa.Munguva ichangopfuura, mhangura, aruminiyamu, nickel uye mimwe mitengo isiri-ferrous simbi yakakwira zvakanyanya, nekudaro ...
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