The position of the structural expansion mold is first chiseled, and then rinsed with water. Plastering can be done only after the repair is smooth. It is strictly forbidden to have small or large spots on the edges of doors, windows, etc. in plastering.The thickness of the base layer should be 3mm, and no leakage should be allowed. If there is any leakage, it should be repaired in time.
High Purity Hafnium Nitride HfN Powder refers to high-purity Hafnium nitride powder. Hafnium nitride is a gray powder with a cubic crystal structure, a melting point of up to 3310 ℃, and a microhardness of 16GPa. It is quite stable but easily corrupted by aqua regia, concentrated sulfuric acid, and hydrofluoric acid. This powder is generated by the direct reaction of hafnium and nitrogen at 900 ℃, or by the reaction of hafnium halides with ammonia or a mixture of nitrogen and hydrogen gas. It has the characteristics of high purity, small particle size, uniform distribution, large specific surface area, and high surface activity.
Tungsten Trioxide yellow powder. Tungsten trioxide, yellow powder, insoluble in water. Soluble in alkali. This is used for the manufacture of high melting points alloys and hard alloys, as well as tungsten wire and fireproof material. Color: yellow,
0086-0379-64280201
sales5@nanotrun.com
skype
whatsapp