Nsen-hkap la lu ai panel ni a matu madung lang ai arung arai ni gaw hpun, mineral wool, hte hpun palawng ni rai nga ai. Hpun nsen-hkap la ai panel ni gaw, myi man, core material, hte nsen-hkap la ai felt ni lawm nna, grooved hpun nsen-hkap la ai panel hte perforated hpun nsen-hkap la ai panel ngu nna garan ai. Mineral wool nsen-hkap la lu ai panel ni hpe mineral wool n-gang ni hte galaw da nna nsen hpe hkap la lu ai atsam kaja nga ai. Fabric nsen-hkap la lu ai panel ni gaw, n-gun n rawng ai hpun palawng hpe shingdu dat ai, npawt nhpang langai mi, nsen-hkap la lu ai cotton ni lawm nna, wan-hkap la lu ai Class A centrifugal glass wool hpe madung tawn nna galaw da ai.
Ndai arung arai ni gaw langai hte langai tinang a arawn alai nga ai. Hpun hte galaw ai nsen-hkap la lu ai panel ni gaw, mawn sumli ai lam kaja ai hte nsen hpe hkap la lu ai majaw, nta kata na makau grup yin amyu myu hta htuk manu ai. Mineral wool nsen-hkap la lu ai panel ni hpe n-gun n law ai hte n-gun n law ai majaw grai lang ma ai. Fabric sound-absorbing panel ni gaw, shanhte a tsawm htap ai hte nsen hpe hkap la lu ai majaw, masha law law ra sharawng ai rai nna, zuphpawng hpawng shingra, television rung ni hte kaga dai hte bung ai shara ni hta lang chye ma ai.
Dai hta n-ga, polyester fiber nsen-hkap la lu ai panel ni mung nsen-hkap la lu ai arung arai langai mi rai nga ai. Dai ni hpe polyester fibers kaw na hot pressing hku nna galaw ai rai nna, nsen hpe n hkam la lu ai, grup yin hpe n hkra lu ai, wan n hkru ai zawn re ai akyu law law nga ai. Ndai arung arai gaw engineering hta nsen hpe shayawm na matu sha n-ga, kaja ai tactile feel hte nsen hpe hkam la lu ai atsam a majaw, lam law law hta mung jai lang mai ai.