Tegumenta communia polyurethana maxime includunt tegumenta mea polyurethana et tegumenta siccitatis polyurethanae.Velum polyurethanum in metallurgia (ferrum calcis, calcis, fluorite, flatus fornacis scoria refrigerans, cocus et alia materia rudis), metalla non ferrea, carbones, oeconomiae, matta aedificant.
Lege plus