... Material:GCr15,GCr15SiMn 2.Certification:ISO9001:2008 3.high quality and competitive price 4.roller bearings/rodamientos *********************************************** ... late particularly significant in the use, therefore, requires high precision, without Xu Youzhen moving occasion, bearing hard ... ., have passed the test, go to the assembly plant for assembly, the process is as follows: Part ...