... :2000 2).Material:GCr15,GCr15SiMn Gcr15-China, (AISI) 52100-USA, (DIN) ... 3).various of bearin Supply different kinds of good quality angular contact ball ... bearing,main features:1.Types:60series,62series,63series,,68series,69series,etc.2.Material:Gcr15-China ...