Established in 1990, Baotou National Rare Earth Hi-Tech Industrial Development Zone was approved to be national high-tech zone by the State Council in 1992. It
Comprehensively considering the factors such as descaling cooling,air cooling,water cooling,frictional heat and deformation heat in gap of every stand,heat cond
The grain oriented silicon strip was rolled by cross shear rolling(CSR)and then annealed to manufacture non-oriented thin silicon strip of high quality.The recr