Nka polyurethane rigid ifuro (PU rigid foam) ifite ibiranga uburemere bwurumuri, ingaruka nziza yo gutwika amashyuza, kubaka byoroshye, nibindi, kandi ikagira kandi ibintu byiza cyane nko kubika amajwi, kurwanya ihungabana, kubika amashanyarazi, kurwanya ubushyuhe, kurwanya ubukonje, solvent re ...
Soma byinshi