| 摘要 |
<p>Floor covering is made by coating a backing sheet with a thermoplastic paste impregnated with Al2O3 levelling the paste with a doctor knife, curing the coated sheet adding a coating of impregnated paste of lower viscosity, levelling the paste with a doctor knife, sprinkling SiC grit onto the second coating, curing the coating and embossing small indentations in the surface of the second coating.</p> |
