Video ngwaahịa
Ndozi nsogbu
1.Mgbidi peeling na ihe efu bulging
2.Moldy na gbajiri putty.
3.The waterproof Layer na isi oyi akwa adịghị ejikọta ya, na-eme ka ọkpụkpụ na-abaghị uru na-adaba brik.
Uru
1.Moisture-proof na mildew-proof
2.Adhesion siri ike
3.Atụghị egwu ọkụ na oyi
4.PH bụ adịghị ike alkaline
5.Enyi na gburugburu ebe obibi
Ngwa sara mbara
kichin, ime ụlọ, ime ụlọ, ime ụlọ ịwụ, mbara ihu, ebe a na-adọba ụgbọala n'okpuru ala, wdg.