Wanleng lam hpe gram lajang ai hta, n-gang n-gang ni a ntsa hta n kaja ai lam ni hpe hparan na matu, lam n-gun n-gun n-gun n-gun n-gun ni hpe hparan na matu, shanhte a bungli galaw ai npawt tara ni, jai lang ai lam ni, akyu ni gaw npawt nhpang hku nna shai hkat nga ai.
Track grinding jak a bungli galaw ai npawt tara gaw, n-gang n-gang a ntsa hpe grind galaw na matu, tsaw ai{0}}}}speed shingjawng ai leng hpe lang nna, ntsa na oxide layer hpe shaw kau ai, n-gun kaji ai wave{1}} zawn re ai n-gang ni hpe shaw kau ai, weld spatter, rust, shing nrai, kaji kajaw n-gun ni hpe shaw kau ai. Shi a grinding sung ai lam gaw, grai n-gun n rawng ai, n-gun n law ai magri hpe shaw kau ya ai, law malawng gaw 0.1 hte 0.3 millimeters lapran rai nga ai. Dai majaw, track grinding gaw, n kaja ai lam kaji ni hpe ayan na gram lajang na matu hte makawp maga na matu grau htap htuk ai. Granding galaw ai lam gaw wan n-gun hte magri n-gun ni hte rau hkan nang nna, nsen kaba hpe shapraw ya ai. Raitim, dai arung arai ni gaw, n-gun n rawng ai hte n-gun rawng ai, lata hta mai lang ai, mawdaw- hpe lata hte lu mai ai, mawdaw kaba ni hpe jung da ai, shing nrai, kaba ai grinding wanleng ni pyi nga ai, dai gaw mare kata na wanleng lam hkawm sa ai lam, npu lam ni, nhtoi htoi ai wanleng, hte dai hte bung ai jai lang lam ni a matu htuk manu ai.
Dai hte nhtan shai ai hku nna, wanleng jak langai a npawt tara hta, wanleng ntsa kaw na hka htung htu ai tsi htu ai tsi hpe lang nna, carbide milling cutter hpe lang ai lam lawm ai. Dai gaw ntsa na layer hpe n-gun n-jaw ai sha, wanleng lam langai hpe jak hte ‘bai dat ya ai’, dai hpe n-gun n-gun n-rawng ai, n-gun n-gun n-rawng ai, sung ai n-gun n-gun n-gun yawm ai, htum mat ai, n-gup n-gu n-gun yawm ai zawn re ai n-gun n-rawng ai lam ni hpe hparan ya lu ai. Dai hka htung sung ai shara gaw, 1 millimeter (sh) dai hta jan ai du hkra du lu ai, 1 millimeter ({4}}pass langai sha lu la mai ai, geometrically hkrak hkrak ai jahtum gaw, wanleng baw hpe shi a shawng na jak rung masa de bai gram lajang ya ai. Dai hka htung galaw ai lam gaw, grinding hte shingdaw yang, wan n-gun, n-gun n law ai, nsen n-gun n law ai hpe shabyin ya ai majaw, grau nna, tsaw ai-}}speed wanleng lam ni, mungdan ting na hka hkin gau line ni, shing nrai, n-gun ja ai wa{7}}haul lam ni a matu grai htuk manu ai shara ni hta, lam n-gun grai ja ai lam ni nga ai.
Bungli galaw ai makau grup yin a ningmu hku yu yang, track grinding gaw tsaw ai- n-gun kaba ai, lawan ai-paceed shani shagu gram lajang ai bungli ni a matu grau htap htuk ai, dai ni gaw wanleng lam gram lajang ai magam dap ni, metro operator ni, shing nrai, masum ngu na- pati hpe gram lajang ai magam bungli galaw ai ni, grau nna grup yin hte nsen ni hpe pat shingdang da ai mare kaba ni hta galaw ai zawn re ai ni a matu grau htap htuk nga ai. Track milling machine ni gaw, kaba ai, manu dan ai, n-gun ja ai cutting atsam ni nga ai, dai majaw madung hku nna wanleng lam rung ni hku nna, grai sawng ai n kaja ai lam ni hpe tsi lajang ai lam, shing nrai, hkrak hkrak re ai lam hpe gram lajang ai lam ni hpe galaw ai, ga shadawn, n-gun kaba ai-}}speed wanleng lam ni hpe ayan gram lajang na matu jai lang ai.
Kaja wa tsun ga nga yang, track grinding jak ni gaw, mahkawn ni a matu ‘skincare products’ ni zawn rai nna, aten tup gram lajang ya ai hte manghkang ni n byin hkra makawp maga ya ai; track milling jak ni gaw, maga mi de, ‘surgical tools’ zawn rai nga ai, dai zawn byin wa sai lam kaba ni hpe hparan na matu laksan galaw da ai. Langai hte langai gaw, galai shai mai ai lit nga ai, teng sha gram lajang ai lam hta, shanhte gaw shada da madi shadaw hkat chye ai.
