... SKF,NSK,HCH 4.best after bearing auto bearing:1. Product range of use: 1) These bearing are widely used in automobile, ... -6220 ,6300-6320 ,6403-6413 3) Material: Gcr15 (Chrome steel) -China, (AISI) 52100-American, (Din) 100Cr6 -Germany, carbon steel, iron. ... brand, etc.) 3. The company promises: Jinan Kaiming Bearing Co., Ltd. Is a famous bearing manufacturer authorized agent and is one of the world ...