Rubber tarna leh rubber tarna kalphung nghawng thei thilte: Rubber tarna thlentu ber chu: thermal oxygen chanvo, ozone chanvo, metal ion-te chanvo, êng chanvo, mechanical force-a awm, a bik takin mechanical force, heat, ozone-a boruak, a bik takin khaw lum, ênga awm, a hun lai tak, a hun lai tak, a hun lai tak, a hun lai, a hun lai tak, a hun lai tak, a hun lai, a awm leh a, chu chu a lo thleng thuai dawn a ni. Thil thleng (phenomenon). a ni.
