PTFE Plays A Vital Role In The Turn Of Cable-stayed Bridge
China’s first sea-crossing high-speed railway between Fuzhou and Xiamen is coming, on which the cable-stayed bridge has been built successfully with the help of PTFE …
plastic
Polymer plastic properties
1.Definition The main components of polymer plastics are mainly polymer compounds, whose molecular weight is about 1 000, which is only for the physical concept. …
