... introduction of developed technology and equipment, and own unceasing research and development of new metal material and thermal treatment technology, our ... for carbon steel strip, stainless steel strip, aluminum strip, copper strip and so on. Our forged rolls includes work ... , wind power generation shaft, turbine shaft, shear blade and screw shaft.Our material includes 9Cr2Mo, 86CrMoV7, 9Cr3Mo, ...