| 摘要 |
A glazing bead has an outer skin formed in two parts. The two parts are formed by moulding a cloth or paper of glass fibre or other suitable fibrous material impregnated with phenolic resin containing one or more frits and ceramic powder or fibre. The two moulded parts are joined together and the resultant cavity therebetween filled with a mixture of phenolic resin containing one or more frits and ceramic powder or fibre, or sodium silicate containing one or more frits and ceramic powder or fibre. |
