This specification covers one type of asbestos fabric impregnated with polytetrafluoroethylene in the form of woven sheet or strip or of braided tubing.
This specification covers one type of asbestos fabric impregnated with polytetrafluoroethylene in the form of woven sheet or strip or of braided tubing.
This specification covers one type of asbestos fabric impregnated with polytetrafluoroethylene in the form of woven sheet or strip or of braided tubing.