... wind power, petrochemical industry Features: Big Size gear ring for wind power, petrochemical industryCeritification: TUV, ISO9001 ... , 2000 tons of oil hydraulic press, 3800NC ring-rolling mill and nondestructive inspection equipment as well as ... turbine shafts, ship shafts, heavy gears, flanges, ring pieces, all kinds of forging parts etc. If ... question, please contact me. large forged gear ring