The chemical properties of Fe3O4

The chemical properties of Fe3O4

it is a black crystal with magnetism, so it is also called magnetic iron oxide. It cannot be regarded as "ferrous ferrite" [Fe(FeO2)2], nor can it be considered as a mixtu...
Hexagonal boron nitride: seems to be the material of choice for 5G RF switches

Hexagonal boron nitride: seems to be the material of choice for 5G RF switches

A thin layer of hexagonal boron nitride (BN)is sandwiched between gold electrodes, which can be used as a switch to transmit 5G or higher frequencies....
Announcement on postponing the holding of "2020 China

Announcement on postponing the holding of "2020 China

China International Bearing and Special Equipment Exhibition 2020...

The difference between high speed bearings and low speed bearings

Resource128Days Ago (05-19)
1. Basis for distinguishing high-speed bearing from low-speed bearing. Due to the use of the way is different, so the bearing can be divided into the high-speed and low-sp...

Compared With Metal Bearings, What Are The Advantages And Disadvantages Of Ceramic Bearings

News164Days Ago (04-13)
The shape of the ceramic bearings are similar, but the size and material are different, thus forming different ceramic bearings. The advantages and disadvantages of differ...

Steel mills raise steel ex-factory prices, steel prices are bullish in the short term

News182Days Ago (03-26)
Recently, many steel mills in China have successively raised their steel factory prices. The ex-factory prices of Shougang Changzhi, Hesteel Group, Shanxi's wire rods, coi...