Olona setyenziso luphambili lwemathiriyeli entsha ye-polyurethane Kule mihla, imathiriyeli yokugquma i-polyurethane yaziwa nguye wonke umntu njengezinto zokugquma, ikakhulu ezisetyenziselwa ukugquma eludongeni, ukugquma kombhobho iindawo ezimbini eziphambili, ezinjengemibhobho ye-oyile, imibhobho yegesi kunye nokugquma eludongeni lwendlu.Polyurethane insulation steel p...
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