Feldspar crystal form
Guangdong Yangchun fossil Permian Longtan coal lines
Compressive fault fracture zone in the Sinian siliceous rocks of the Lower Intermediate Court of Fangshan, Beijing
Huayang Nanwang Huashan
Block plane dividing line
PTFE (Polytetrafluoroethylene) is a synthetic fluoropolymer with a high melting temperature that has outstanding chemical resistance and self-lubrication properties.
PTFE Sheet is made of a high molecular weight fluoropolymer named Polytetrafluoroethylene, commonly referred to as PTFE. PTFE is a fluorocarbon, meaning it consists wholly of carbon and fluorine bonds and it is non-reactive in part because of the strength of the carbon-fluorine bonds.
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