Zhengzhou Sinco offer all kinds of forged hubs and sleeves, the material can be carbon steel and alloy steel, the OD ranged from several ten milometers to about 800 milometers. Our feature is we can supply these products by client’s design and CAD drawing or even the sample. Our engineer team will checkyour drawing first, then communicate with you redarding hte techanical problems. finaaly give theoffer according our material cost and situaiton.Regards,Ms. Ginger LeeZhengzhou Sinco Machine co., ltd