Our company agency sells the Chinese famous brand ball bearing product, the price is reasonable, quality goodFeatures:1) materials:440c,430,420,410,302,304,316,316l2) different grades: G40, g60, g100, g200, g5003) complying with the China gb308-2002 and u. S. A afmba1989 standards4) applied in all kinds of exactitude machines, stainless bearings, valve balls,Chemical and medical related applications