but after doing a google search on "Thermo Flex Fiber"
i came across this.
"6 ) What is PFRP and TFF and How is it compared DURAFLEX.
PFRP Is an Acronym for POLY FIBER REINFORCED PLASTICS. A Flexible Variant Of FRP. Its extremely lightweight and allows for excellent fitment. TFF Is an Acronym for Thermo Flex Fiber. This is Our Number 1 Quality Product.
Everyone Now speaks something called Duraflex. This Acronym is used as a Cheap Method of Marketing. In this world there is no material Called Duraflex. Rather its Fiberglass used but to Mislead Customers. "
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