Ao rolar a mola do relógio e pe?as de chapa de a?o, metais n?o ferrosos e materiais de liga, usando...
é um recipiente de moagem que tritura materiais granulados em pó por vibra??o. Quando se trabalha,...
The calculation principle of expansion is as follows In the process of bending, there is...
The following few aspects are closly connected with the malfunction of mechanical parts: (1) Integral...
Today I am going to introduce some strange looking micrometers. Let’s see what you have...
At present, in order to improve the operation rate of the rolling mill and reduce...