Kebo ya PMMA yenye ncha nyingi inayong'aa
( φ0.75*3 nyuzi; ala PVC)
( φ0.75*7 nyuzi; ala PVC)
(φ0.75*20 nyuzi; ala PVC)
(φ0.75*50 nyuzi; ala PVC)
(φ0.75*100 nyuzi; ala PVC)
Kupunguza (db/Km) ≤210;
Kebo ya PMMA yenye ncha nyingi inayong'aa( φ0.75*3 nyuzi; ala PVC)( φ0.75*7 nyuzi; ala PVC)(φ0.75*20 nyuzi; ala PVC)(φ0.75*50 nyuzi; ala PVC)(φ0.75*100 nyuzi; ala PVC)Kupunguza (db/Km) ≤210;