Preparation and application of amorphous boron
InnovationsToday (07-07)
Amorphous boron is a kind of dark brown powder chemical products, usually used in metallurgical and aerospace fields....
The Main Structure and Matching of Single Row Cylindrical Roller Bearings
Tech28Days Ago (06-09)
Single-row tapered roller bearings are mainly used to bear radial and axial combined loads mainly radial load, is a very common type of bearing. Many people are not very c...
Application of aluminium nitride refractories
Industry57Days Ago (05-11)
Aluminium nitride is a compound of nitrogen and aluminium, the chemical formula is AIN, hexagonal crystal system. The colour is light blue or green. Mohs hardness 5. The t...