... widely used in slewing bearing, wind power tower flange, connecting flange of oil pipe and other mechanical part. For your reference ... diameter: 1250mm to 5000mm,3. materials: carbon steel, alloy steel and stainless steel, such as C20,C35,C45, 16Mn, 50Mn, 42CrMo ... quality products to many manufactuerers of slewing bearing, wind power tower and heavy machine. Any interests in our products, please feel ...