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Cold heading (extrusion) gaw magri n-gun hpe galaw ai hta lawm ai, n-gun n-gun hpe n-gun dat galaw ai lam hta lawm ai.jak hpajin-gun n rawng ai{0}}.

Hpa majaw nga yang, n-gun n-gun hta, n-gun n-gun hpe n-gun dat dat ai shaloi, n-gun n-gun hpe n-gun n-gun n-gun n-gun hpe n-gun dat ai.

DAWkatsi ai aten na madung myit masa, katsi ai extrusion a rawt jat galu kaba wa ai labau, katsi ai aten na akyu ara hte n kaja ai lam ni hpe tsun dan na hte katsi ai bawnu, katsi ai bawnu hte katsi ai bawnu hpe shingdaw ai lam hpe shingdaw ai lam ni hpe tsun dan na re.

Cold heading (extrusion) gaw, hkrak tup ai plastic volume hpe hpaw shabawn ai hta ahkyak ai daw langai mi rai nga ai. Cond extrusion ngu ai gaw, n-gun ja ai n-gun hte lawan ai hku, n-gun ja ai n-gun hte lawan ai hku, plastic lwi ai lam hpe galaw na matu, n-gun ja ai n-gun hte, n-gun rawng ai arung arai ni a ra kadawn ai hkrang, galu kaba ai lam, hte jak hpaji nkau mi hpe lu la na matu, n-gun ja ai n-gun hte, lawan ai lam langai ngai hpe tsun mayu ai.

Hkrang shala ai hku nga yang, katsi ai extrusion galaw ai lam gaw, magri a lwi ai hpe hkang lu na matu, n-gun dat hpe hkang lu na matu, n-gun law law hpe galai shai na matu, daw ni hpe n-gun jaw ai.

Kaja wa nga yang, gara hku mung byin pru wa aira ndai; apat ain-gun n rawng ai baw hpe n-gun jaw ai lam sha n-ga, n-gun n rawng ai ladat amyu myu hpe mung, shawng de hte shingdu n-gun rawng ai, n-gun rawng ai extrusion, compound extrusion, punching hte rolling, etc.} ni zawn re ai lam amyu myu hpe mung, katsi ai aten hta n-gun n rawng ai hku n-gun jaw ai lam a lam hpe n-gun jaw ai lam a lam hpe n-gun jaw ai lam a lam hpe n-gun jaw ai lam a lam hpe n-gun jaw ai lam a lam hpe n-gun jaw ai lam rai nga ai.

Dai majaw, galaw shapraw ai hta katsi ai ngu ai mying gaw htunghking mying sha rai nga ai, shing nrai, katsi ai baw (squeeze). ngu nna tsun ra ai.