Masha law malawng lu sha ai arung arai ni hta plastic, glass, ceramic, magri, etc. ni lawm ai.
1. Plastic malu masha .
Plastic malu masha hka htung gaw, madung hku nna plastic hte galaw da ai malu masha ni hpe shinggyin tawn da ai hka htung langai mi rai nga ai. Plastic malu masha ni gaw n-gun n law ai, htaw na matu loi ai, grai dan dawng ai, ra sharawng ai hku lata la mai ai. Raitim, plastic hka htung ni gaw nbung katsi ai hpe n hkam sharang lu ai, n-gun n rawng ai, n-gun n rawng ai, n-gun ja ai manam pyaw ai malu masha ni hpe shinggyin tawn na matu n htap htuk ai. Dai hta n-ga, grai law hkra jai lang yang, hkam kaja lam a matu n kaja ai dioxins zawn re ai n kaja ai arung arai ni hpe mung galaw shapraw na re.
2. Lusha n-gun hpe shat shadu u
Glass malu masha hka htung ni hta asan sha nga ai, kata kaw na lusha ni hpe mu lu ai, malu masha hpe awu asin byin shangun na n re. Shanhte gaw nbung laru kaba hpe hkam sharang lu nna, acid- hpe ninghkap lu ai hte alkali- hpe ninghkap lu ai majaw, shanhte hpe kaja dik ai malu masha shinggyin tawn ai hka htung ni byin shangun ai. Dai hta n-ga, plastic hka htung ni hte shingdaw yu yang, glass hka htung ni hpe jasan jaseng na matu loi ai, manam pyaw ai baw ni hpe tawn da na matu n loi ai, grau galu ai magam bungli prat hpe lu la ai.
3. Ceramic malu masha hka htung
Ceramic malu masha ni gaw lai wa sai shaning ni hta pru wa ai arung arai langai mi rai nga ai. Shanhte gaw porcelain a hkrang bung sumla nga ai, malu masha a shawng na manam pyaw ai hpe makawp maga ya lu ai, plastic hka htung ni hta grau nna grup yin hpe grau hkra machyi shangun ai. Ceramic container ni gaw n-gun n rawng ai texture hte shim lum ai hkra ai, raitim, dai arai ni gaw grai n-gun n rawng ai majaw, dai ni hpe lang ai shaloi, n-gun n rawng hkra sadi ra ai.
4. Metal malu masha ni hpe bang da ai
Tin box zawn re ai metal malu masha ni hpe hkaulan mam hta lang chye ai. Metal container ni hta sealing atsam kaja nga ai, malu masha hpe n-gun n rawng hkra galaw ya lu ai, hkrang nsam hte nsam hpe kaja hkra galaw ya lu ai. Dai ni gaw sut masa hte tatut galaw mai ai ni re. Raitim, chemical (sh) alkaline malu masha ni hpe n mai lang ai, hpa majaw nga yang, dai ni gaw chemical reaction ni hpe hkam sha chye nna, malu masha a hkam kaja lam hpe hkra machyi shangun ai majaw re.