Invention Grant
US4781972A Composite material and process for making same 失效
复合材料及其制造方法

Composite material and process for making same
Abstract:
A heat-resistant fabric coated or impregnated with tetrafluoroethylene resin is baked at such a temperature for such a period of time that only the resin layer is baked without impairing the strength of the fabric substrate because the substrate is not subjected to a high temperature for a long time.
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