... customers' design ISO,CCS,TUV,AD2000,LR,ABS,DNV certification open die forging1,Type: Different forgings with customers' design2,Features:3 ... .12,Our company have 4,500 tons, 2000 tons of oil hydraulic press , 3800NC ring-rolling mill and nondestructive inspection equipment ... .If you have any question , please contact me . Thank you . open die forging ring