Khw hnub no

Thaum tsaus ntuj, qhov siab tshaj plaws nickel kaw ntawm 20450, qis tshaj ntawm 20610, thiab qis tshaj ntawm 20160 poob los ntawm 85, nqis los ntawm 0.41%; Nag hmo, nickel kaw ntawm 167,440, nqis 1,520, nqis 0.89%.