Straight-sided glass cups ni gaw, asan sha hte tsawm htap ai hkrang, asan sha re ai nsam, tatut galaw mai ai magam bungli ni hte, nta kaw lu sha na matu, rung kaw shangwi shapyaw na matu, shani shagu tsa chyaru lu sha na matu ra kadawn ai arung arai ni tai wa sai. Lu sha ni hpe tawn da na matu, tsa chyaru galaw na matu, sha ku hpe mawn sumli na matu lang ai rai tim, asan sha hte san seng ai lam gaw madung ra kadawn ai lam ni rai nga ai. Raitim, gat kaw nga ai dingyang-maga de na glass cup ni a quality gaw grai shai hkat nga ai. Nkau product ni hta n asan sha, n san seng ai, n-gun kya ai zawn re ai manghkang ni nga ai majaw, lang ai wa a mahkrum madup hpe hkra machyi shangun ai. Dai majaw, hpaji masa hku lata la ai ladat ni hpe atsawm chye na ai gaw, asan sha, san seng ai, ngang grin ai, tatut galaw mai ai lam hte tsawm htap ai lam hpe rap ra hkra galaw lu ai, madang tsaw ai-quality dingyang-sided glass cup ni hpe lata la na matu ahkyak nga ai.
-quality tsaw ai dingyang-sided glass hpe lata ai shaloi, shawng nnan myit maju jung ra ai lam gaw, dai arung arai a quality hpe lata ai. High-quality straight-sided glass ni hpe high borosilicate glass hte galaw da ai rai nna, dai gaw san seng ai, n san seng ai lam n nga ai, nhtoi hpe 90% jan shapraw lu ai majaw, sumwi n lawm ai sha, asan sha htoi tu ai hku mu lu ai. Dai hte nhtan shai ai hku nna, n kaja ai shingnip ni hpe gaw, n san seng ai arung arai ni lawm ai majaw, shingnip hpe nsam nsam nsam zawn byin shangun nna, dan dawng ai hka htung (sh) nhprang wan n-gun ni hpe pyi mu lu ai.
Lahkawng, dai glass a asan sha nga ai hte n san seng ai hpe atsawm sha jep yu u. -quality tsaw ai dingyang-sided glass gaw kata hte shinggan de n-gun n rawng ai, n-gun n rawng ai, n-gun n rawng ai, bunghku n-gun langai sha rai nga ai. Glass hku nna tsan ai shara ni hpe yu ai shaloi, nsam galai shai ai lam (distortion) n nga ging ai. Rim hte base zawn re ai lam ni hpe laksan sadi u, ngam ai glass daw ni, n san seng ai lam ni, gap ai masat kumla ni hpe koi ra ai. Dai hta n-ga, glass hpe mung shim lum ai hku dip dat u; high-quality glass gaw, nsen n-gun n rawng ai sha, asan sha, pyaw ai nsen hpe shapraw ya na re. Nsen n pru ai gaw, arung arai hta n kaja ai lam (sh) makoi da ai awu asin re ai lam ni hpe madun ai rai na re.
Hpang jahtum, nang lang na matu mug hpe lata ai shaloi, tatut jai lang mai ai lam hte ngang grin ai lam lahkawng yan hpe myit yu u. Shani shagu nta hte rung kaw lang na matu, n-gun n-gun n-rawng ai, hkam kaja ai-to-dingyang -mug hpe lata la u. Tea (sh) coffee hpe galaw ai rai yang, wan hkru ai lam hpe koi gam ai sha n-ga, asan sha byin hkra, insulation kaja ai loi mi galu ai mug hpe lata u. Bai nna, mari ai shaloi byin chye ai shut ai lam ni hpe koi nna, manu kaji dik ai hpe myi nmu ai sha hkum hkan shachyut.