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10-15-2013, 06:10 AM
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g-user
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China Perfluoroalkoxy Teflon-PFA news
PFA of pfa ball valve is very similar in composition to the fluoropolymers PTFE and FEP (fluorinated ethylene-propylene). PFA and FEP both share PTFE's useful properties of low coefficient of friction and non-reactivity, but are more easily formable. FEP is softer than PTFE and melts at 260 °C; it is highly transparent and resistant to sunlight.
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