SPECIFIFATION:FORGED HIGH SPEED FLAT STEEL,ROLLED FLAT STEEL DIMENSION:70-150*150-300,120-355*300-600,5-30*30-100,70-150*150 PRODUCT NATURE ... -88.MAIN USAGE:THE STEEL IS MAINLY USED FOR MAKING VARIOUS MACHINETOOLS WITH HIGH CUTTING SPEEDS,HEAVY LOADS ANDHIGH WORKING TEPERATURES SUCH ... , HOBS, BROACHES, DRILLS, TAPS,ETC, IT IS ALSO USED FOR MAKING COLD OR HOT WORKDIES WITH HIGH WEAR RESISTANCE.