Chemical nena inzawmna nei lo: 925 silver hi chemical rimtui, cosmetics, leh detergent te nena inzawm hian chemical reaction a nei awlsam a, oxidation leh darkening a thlen thin. Chuvang chuan makeup emaw perfume emaw hnawih zawhah silver jewelry hak a tha ber a, inchhung hna kan thawh dawnin paih chhuah a, dah hlat a tha.
Friction leh Impact tihtlem: 925 silver hi a nem deuh a, thil khauh tak nena inhnawh leh inhnaih fo hian silver jewelry chunglam a ti hrual mai bakah a hmel a tichhe thei a, deformation a thlen thei bawk. Entîr nân, tangkarua lunghlu chu chahbi, tangka leh thil dangte nêna dah loh tûr a ni.
