1980 ning kaw nna, n-gun kaba ai, n-gun ja ai, n-gun ja ai, n-gun n-gun hpe hkye la ai, matut manoi galaw ai, hte tinang hkrai galaw ai bungli ni hpe galaw ai hta, n-gun ja ai jak ni hpe gyin shalat ai hta, grai rawt jat wa sai. mill drives), wan n-gun hpe sawk sagawn ai ladat ni (hpyen jak ni hte sensor ni hpe madung tawn nna), computer ladat ni (hpaga lam hpe hkang ai computer, PLC (sh) microcomputer ni hpe jailang ai). Matut manoi galaw ai lam rawt jat galu kaba wa ai lam ni a ga shadawn ni hta, direct rolling, n htum n wai ai rolling, hte pickling–katsi ai rolling, pickling–cold rolling–matut manoi annealing, jak hte n-gun shayawm ai–katsi ai rolling, hte thin-strip matut manoi htu ai/htum ai–katsi ai rolling ni a matu hpawng de da ai unit ni lawm ai. Hpaji rawng ai lam hpe grau kaja hkra galaw lu na matu, n-gun lang ai lam hpe shayawm lu na matu, gumhpraw bang ai hte galaw shapraw ai manu hpe shayawm lu na matu, bungli galaw masha ni a galaw shapraw ai lam hpe jat wa hkra, nhprang sut rai hpaga lam gaw galaw shapraw ai lam hpe kadun hkra galaw na matu hte htunghking lailen ni a daw nkau mi hpe ningnan shalat ai (sh) yeng seng kau ai lam ni hpe madung tawn ai majaw, "short{{10}n}process" tech byin pru wa ai.
Ndai hpan hta lawm ai laklai ai ladat ni gaw: coke-n lawm ai, -n-gun n rawng ai-hpyen n-gun n rawng ai magri galaw ai; ultra-hkum tsup ai-n-gun ja ai wan n-gun (EAF) n-gang galaw ai; ladle hpe jasan jaseng ai (lahkawng ngu na nlung hpaji); hte thin-slab hpe matut manoi htu nna shinggrup ai. Metallurgical coking coal hpe grau grau jat wa ai majaw, mungkan ting na grup yin makawp maga ai madang ni hpe grau grau ngang kang wa ai majaw, htunghking hku nna blast-hpyen hpri galaw ai ladat gaw, coke-n lawm ai, -hpyen nre ai-hpyen htu ai kaga ladat ni kaw na chyam dinglik lam ni hpe hkrum sha nga ai. Mungdan law law gaw coke-n lawm ai magri hte n-gang galaw shapraw ai ladat amyu myu hte jak rung hpaji ni hpe atsam dat galaw nga ai rai nna, grai rawt jat wa nga ai.
Tsaban 20 htum wa de, direct reduction iron (DRI) hpaji masa law law hte n law htum n-gun shayawm ai hpaji masa ni hpe hpaga lam hta jai lang wa sai. Direct shayawm ai ladat ni hta, gas- hpe madung tawn ai shaft wan wut ai ladat (shingra gas (sh) synthetic gas hpe shayawm ai ladat hku jai lang ai) hte nhprang wan - hpe madung tawn ai rotary kiln ladat (nhprang wan n-ga hpe n-gun npawt hku jai lang ai); ndai ni gaw shi a hka lim ai shara npu na nbung katsi ai shara hta magri hpe porous solid sponge iron de shayawm kau ya nna, wan jak ni a matu -quality ai scrap galai shai ai lam hpe jaw ya ai.
Gas-madung ai ladat ni hpe Midrex hte HYL ladat ni gaw madung tawn nna, shaning shagu ton wan mi jan shapraw lu ai -madang kaba ai shara ni nga ai. Smelting reduction ngu ai hta, magri n-gun (sh) concentrate hpe n-gun rawng ai masa hta n-gun rawng ai magri de shayawm kau ai lam lawm ai; Corex process gaw ndai ladat a dan dawng dik ai ga shadawn rai nga ai. C-3000 Corex galaw shapraw ai rung gaw, shaning shagu magri- galaw shapraw lu ai atsam ton wan 900,000 kaw nna wan 1.2 du hkra nga ai, ndai shadawn shadang gaw, galaw shapraw ai lam kadun ni a sut masa lam hte hkrak hkrak rai nga ai.
Integrated matut manoi htu ai hte shinggrup ai arung arai ni-thin-slab matut manoi htu ai hte shinggrup ai ladat ni hku nna ga shadawn hku nna madun dan ai-htunghking galaw ai lam hpe kadun shangun nna, grau n-gun ja ai arung arai ni a layout hte design hpe madun dan ai, n-gun n rawng ai, matut manoi bungli galaw lu shangun ai; ndai gaw nhprang sut rai hpaji masa hta ahkyak ai masa langai hpe madi madun nga ai. Hpa majaw nga yang, n-gun n rawng ai (sh) yak hkak ai - kaw nna - galaw na matu n-gun n rawng ai nhprang sut rai ni hpe shaw la na matu, n-gun n rawng ai nhprang rai nkau mi hte n law htum n-gun n rawng ai nhprang rai ni hpe shaw la na matu, hydrometallurgical ladat ni hpe ayan lang ma ai. Hka htung hta jai lang ai madung jak ni hta, hka htung hpe shaw la ai jak, wan n-gun hpe garan shapraw ai jak, autoclave, filter, hte centrifuge ni lawm ai.
Tsaban 21 hpang daw kaw nna, Miwa mungdan a nhprang sut rai ni hpe galaw shapraw ai bungli gaw, maigan hpaji masa hpe maigan mungdan kaw na shapraw ai kaw nna, shanglawt ai hpaji ningnan ni hpe galaw shapraw ai lam de galai shai wa nna, mungdan kata na hpaji masa hta, coking, sintering, magri galaw ai, nlung galaw ai, matut manoi htu ai, shinggrup ai zawn re ai bungli kaba ni a matu, rawt jat galu kaba wa ai lam ni hpe lu la wa sai. Ya aten hta hpaji masa ni gaw hpaji rawng ai hkang zing ai ladat ni hte hkai sun, n-gun atsam-htuk manu ai hkrang shapraw ai lam ni hpe ahkyak shatai nna, jak rung ni a rawt jat galu kaba wa ai lam hpe, tinang hkrai galaw ai lam, tsan tsan kaw nna yu reng ai lam, grup yin hpe makawp maga ai lam ni hpe jat wa shangun nga ai.