... & rods for aerospace ,aviation ,vehicles etc.. medium and small size rod & bar productVarietyAlloyTemperDiameter(mm)Adopted StandardRod &bar2x,4x,6x,7x seriesH112 ... ,T4,T66~120GB/T3191GJB20541x,3x,5x seriesH112,O,Flarge size Rod & bar productVarietyAlloyTemperDiameter(mm)Adopted StandardRod & bar1x~7x seriesH112,F50~250GB ...