... (rough and finish) as below, gear ring, coupling, sleeve, ring forging, slewing ring , mold, flanges, shafts, bearings, bearing ... rings, rolling blade, bar, and a variety of forging trunnion diameter from 50-1500mm, including round steel ... delivery, very good reputation in forging industry.diameter140-800mmfactorychenxumaterialvariousspecificationbelow12mproductionhot rolling stainless round steel ...