Materials science rawt jat wa ai hte maren, magri mang n-gang ni gaw, bungli galaw lu ai atsam kaba ai hte, bungli law law hpe hpawng de lu ai de rawt jat wa nga ai. Ga shadawn, high-zinc brass (zinc 40% jan lawm ai) gaw, nickel hte aluminum zawn re ai n-gun ni hpe bang nna, shi a n-gun hpe n-gun ja hkra galaw ya ai sha n-ga, grau sawng ai bungli galaw ai shara ni hta mung htuk manu hkra galaw ya ai. Hkringmang daju gaw, grup yin hpe n hkra ai lead- n lawm ai magri (HWCuZn-1 zawn re ai), microalloying hpaji masa hku nna, htunghking lead- lawm ai magri hpe galai shai ya ai sha n-ga, grai kaja ai jak rung atsam hpe mung makawp maga ya lu ai, electronics hte electrical hpaga lam ni a grup yin hpe makawp maga ra ai lam ni hpe hkan sa lu ai. Dai hta n-ga, magri- hpe madung tawn ai n-gun n-gun (brass-graphite n-gun n-gun rods zawn re ai ni) gaw, n-gun rawng ai n-gun hpe grau nna shayawm ya lu ai, n-gun rawng ai n-gun hpe jat bang ya ai, bearing hte seal zawn re ai n-gun rawng ai shara ni hta jai lang mai ai atsam hpe madun dan ai.
