. Ga shadawn, n-gun n rawng ai hka lim ai amyu a malai, tinang hkum hpe hkam sha ra ai resin sand (sh) ntsa na hka n-gun hpe jai lang ai zawn re ai ni gaw, n-gun hpe jai lang ai hpe hkye la ai; Strict proporting, hkrak tup ai casting ni a htap htuk ai composition hpe dawdan u, kaja ai tsi htu ai lamang hpe hkap la na, casting masa hta lawm ai castings ni hta hpraw ai (sh) n-gun ja ai shara ni hpe yeng seng kau na matu; Cast ductile iron hpe n-gun jaw na matu, 12% npu na aten hpe breaking state kaw lu la ra ai; frequency wave harmonic vibration kaba wa ai lam hpe mai byin ai daram hkap la nna, stress shayawm ai thermal aging ladat hpe yeng seng kau ai.
2, arung arai ni hpe hkye la nna, bai lang na matu shakut u. Hpa majaw nga yang, gara arai hpe raitim galaw shapraw na matu n-gun ra ai.
3, hkrak tup ai casting enterprise ni hpe kaba ai hku shapraw ai, ngu ai gaw, casting unit langai hpra a pru wa ai lam gaw 5000 hta jan ai. Enterprise law law pru wa ai majaw, wan wut ai wan wut ai aten galu ai, wan wut ai wan n-gun hpe katsi ai n-gun jai lang ai lam hpe, hkrak tup ai casting ni a ton langai hpra a n-gun lang ai lam de grai shayawm kau lu ai.
4, hparan hpareng ai madang hpe gram lajang na, scrap hpe shayawm na. Ga shadawn, shaning shagu 5000t shapraw ai hkrak ai sawk sagawn ai lam, scrap rate 1% shayawm ai gaw 50t precision castings ni hpe shapraw ai hte maren sha rai nga ai, ton mi hta 400kgee n-gun lang ai hku sawn la ai, shaning mi gaw 20t standard coal hpe hkye la lu ai, ngu ai gaw, ton mi shagu gaw 4kgee a n-gun jai lang ai lam hpe shayawm ya lu ai.
