1. Mgbe ejiri ya na-enweghị ihe ọ bụla na-enweghị atụ, ọ nwere ngwongwo ikuku na-adịghị mma, na-eguzogide, na-eguzogide na ike eletrik, na-eguzogide na ike nke phyahdddhalic na Tetrahydrophydhalic arehydrophydralic andrahydrophydhalic andrahydralic. .
2.
3. N'ihi na Alkyd resin, urea-formaldehyde resin,
