Melamine water reducing agent is the product of the reaction that melamine is first sulfonated by sulfuric acid and then condensed with formaldehyde, so the chemical name is sulfonated melamine-formaldehyde resin, which belongs to the anionic surfact…
Cottonfutures are at their highest level in about a decade The mostactive cotton futures on the Intercontinental Exchange closed up 3.8 percent at$1.09 a pound on Tuesday, keeping prices at their highest level since September2011. Gold is up 22% over…
The NAVAL Postgraduate School is experimenting with metal 3D printing. Will this affect the market for molybdenum disilicide heating elements? A sailor aboard the USS Ronald Reagan oversees the F/ A-18F Super Hornet engine. The Naval Postgraduate Sch…
Althoughthe era of full-screen has arrived, due to the existence of the front cameramakes the screen can not be displayed in full, cell phone manufacturers have tomake a variety of holes in the screen. With the advancement of technology, theunder-scr…