1. Anti-ipata breather ihò: Gbogbo air ihò ti wa ni sin ni glaze, ipata-sooro, diẹ ti o tọ.

2. Ṣiṣu murasilẹ: Wọ-sooro ati lati ibere-sooro, ga sojurigindin, ina àdánù, egboogi-oxidation.

3. PP webbing: O tayọ yiya resistance, omi resistance ati kekere otutu resistance.