2M views · 78K reactions | Uses Of Will/Shall || Neha Ma'am || Vatican Institute Rohtak || #english #englishgrammar #englishspeaking #englishvocabulary #englishlearning #uses #of #will #shall #englishbynehamam #vatican_institute | Neha Mam English | Facebook

2.1M views · 76 reactions | A high school football star is spreading kindness by using lessons from his painful past to give others a brighter future. And it all started with one simple gesture. On the Road with Steve Hartman is in Lincoln, Nebraska. | CBS Evening News | Facebook

232K views · 917 reactions | PTFE (polytetrafluoroethylene, commonly...

PTFE-lined pipes are composite pipes with ordinary steel pipes as the base material and polytetrafluoroethylene (PTFE) material lining the inner wall. They have extremely strong resistance to chemical corrosion such as acids, alkalis, and organic solvents, while also possessing low friction, non-adhesion, and high temperature resistance (typically -200℃ to 260℃). They are widely used in chemical, pharmaceutical, metallurgical, and environmental protection fields for transporting corrosive media,