... power, petrochemical industry Features: Big Size gear ring for wind power, petrochemical industryCeritification: TUV, ISO9001 Standards: ASTM, ASME, DIN, ... 4, 500 tons, 2000 tons of oil hydraulic press, 3800NC ring-rolling mill and nondestructive inspection equipment as well as other ... like wind turbine shafts, ship shafts, heavy gears, flanges, ring pieces, all kinds of forging parts etc. If you have ...