Mapanelo owonetsera polyurethane amagwiritsidwa ntchito kwambiri muzitsulo, malasha, mafakitale omangira ndi uinjiniya wa hydropower, kukonza zinyalala zowononga, miyala yamchere ndi mafakitale ena ochapira zinthu, kuyesa ndi kuyika.Makanema otchinga a polyurethane amapangidwa ndi ma polyurethane ovala kwambiri ...
Werengani zambiri