Polyurethane is a kind of polymer containing -NHCOO-repeat structural unit as the main chain, including rigid polyurethane plas...

An indispensable additive in the printing process, forming a uniform water film in the blank part of the printing plate to resist...

On June 29th, Mr. Fang, who studied concrete in Zhuhai, Guangdong, gave a call to our Chinese Federal Customer Service and asked ...

Fermentation is a process in which a large-scale growth and cultivation of microorganisms (or animal and plant cells) is carried ...