Recently, covid 19 outbreak spreads in Shanghai, China. There are more than 25,000 new asymptomatic domestic infections every day. China is implementing a dynamic zero-out policy. A leading respiratory expert said the key to COVID-19 prevention and c
Recently, according to news reports, Luoyang’s new material industry has a “place” in the world, including: the world’s largest monocrystalline silicon rod and wafer production base has been built; the world’s only aluminum nitride
Popular flying woven sports shoes in 2020, soft rebound and breathable, let you run more comfortable.The comfortable spring brings people mild and suitable weather, and also brings people different styles and collocations. A variety of fashi
What is spherical silicon powder? Also known as spherical silicic acid, spherical silicic powder, and so on. The industry. Spherical silica is a white powder of high purity with excellent particles and good dielectric and thermal properties. It has low expansion coefficients and a strong development potential. The purity requirements of spherical powder used in integrated circuits are getting stricter. Normal conditions require that the silicon content is no less than 99.95%. Features and
Nickel boride is an efficient catalyst and reducing agent. It is used as a heterogeneous hydrogenation catalyst. It can also be used to cleave thioacetals.
0086-0379-64280201
brad@ihpa.net
skype
whatsapp