Polyurethane ndi imodzi mwazinthu zapulasitiki zomwe zimagwiritsidwa ntchito kwambiri padziko lonse lapansi, koma nthawi zambiri zimamanyalanyazidwa m'moyo wathu watsiku ndi tsiku. Komabe, kaya muli kunyumba, kuntchito kapena m'galimoto yanu, nthawi zambiri sikukhala kutali, komwe kumagwiritsidwa ntchito nthawi zonse kuyambira matiresi ndi mipando yopangira mipando ...
Werengani zambiri