Hpaga lam hte mung shawa ni hta lang ai, npu hpe jasan jaseng ai, n san seng ai lam ni hpe yeng seng kau ai, arung arai ni hpe hparan ai jak ni gaw, amyu myu nga ai. Ndai ni gaw shanhte a hkrang masa, npawt tara ni, jai lang ai lam ni hta grai shai hkat nga ai. Ndai shai hkat ai lam ni hpe chye na ai gaw, jai lang ai ni hpe shanhte a laksan ra kadawn ai lam ni a matu htap htuk ai arung arai ni hpe lata la na matu karum ya na re.
Shanhte a bungli galaw ai ladat hpe madung tawn nna, san seng ai jak ni hpe madung hku nna jak hte galaw ai, high-pressure hka jet, hte dry ice blasting ngu nna garan ginhka da ai. Mechanical hte jasan jaseng ai jak ni gaw, shinggrup ai brush, scraper, shing nrai, shinggrup ai screen zawn re ai hkum hkrang ladat ni hku nna, ntsa na awu asin ni hpe shapraw kau ya ai. Dai ni gaw, magri n-gun hpe yeng seng kau ai, concrete n-gun hpe yeng seng kau ai zawn re ai bungli ni a matu htuk manu ai. Shanhte a akyu gaw manu n law ai hte galaw na matu loi ai raitim, n-gun ja ai nsam ni hta shanhte a akyu gaw nau n nga ai. Hka n-gun kaba ai hka jet hpe jasan jaseng ai jak ni gaw, nhprang arai ni hpe gap kau na matu, n-gun kaba ai hka jet hpe lang ai. Dai ni hpe sanghpaw li ntsa na nsam hpe shaw kau na matu hte pipe ni hpe hpaw na matu lang ma ai. Shanhte gaw, tsi mawan n lawm ai sha, atsawm sha jasan jaseng ya ai raitim, hka n shang hkra galaw na matu hte bungli galaw ai shaloi shim lum hkra galaw na matu sadi maja ra ai. Dry ice blasting jak ni gaw, n-gun ja ai carbon dioxide n-gun ni hpe lang nna, ntsa lam hpe lawan ai hku hkra nna, kalang ta sublimate galaw nna, nhprang arai ni hpe shapraw kau ya ai. Dai ni gaw, n-gun n law htum hkra machyi ra ai, hkrak tup ai electronic arung arai ni hte htunghking arung arai ni hpe bai gram lajang ai zawn re ai bungli ni a matu htuk manu ai, raitim, dai arung arai ni gaw manu grau hpu ai.
Industrial-grade san seng ai jak ni gaw, n-gun kaba ai hte tinang hkrai galaw ai lam ni hpe lang ai, n-gang htu ai jak ni hta lang ai n-gang plate hpe n-gun shayawm ai jak ni zawn re ai ni hpe lang ai. Ga shadawn, nta (sh) hpaga yumga galaw ai jak kaji ni gaw, mawdaw- hta jung da ai hka shin jak (sh) carpet hka shin jak zawn re ai ni hpe htaw sa mai ai hte lang na matu loi ai hpe madung tawn ai. Dai hta n-ga, san seng ai jak nkau mi gaw, abrasive hte water mist lahkawng yan hpe jai lang ai wet sandblasting jak zawn re ai hpaji masa amyu myu hpe kayau kaya lang nna, akyu rawng ai hte grup yin hpe makawp maga ya lu ai.
Tsun ga nga yang, san seng ai jak hpe lata ai shaloi, ga nhpu amyu, npu npu na arawn alai, bungli galaw ai makau grup yin ni hpe atsawm sha myit yu ra ai. Arung arai amyu myu a bungli galaw ai lamu ga jarit ni hpe asan sha tsun dan ai gaw, hkrak ai hte shim lum ai san seng ai yaw shada lam ni hpe lu la na matu ahkyak nga ai.
