Ukubonisa umlingani
1. Ukusebenza kokungangeni kwamanzi okungaphezu kuka-3,000 mmH2O ngaphansi kwezindinganiso zaseMelika (ASTM).
2. Ukuphefumula okungaphezu kuka-3,000 g/24h m2 ngaphansi kwezindinganiso zaseMelika (ASTM).
3. Indwangu ehlanganiswe noboya obunephethini eyisikwele.
4. Umklamo wokufekethisa / uphawu lwesiliconi olwakhiwe ngaphezulu.