Baochang co., ltd is a professional factory in the steel ball for bearing field. Technical person are professional. We have full set of producing and testing equipments to satisfy producing all kinds of steel ball for bearing.

  According to requirement of GB 9001?000 ， continuing development , canonical control ,from buying original material to finished products, we control each step, testing the products strictly based on international standard .We have exceeded the new national standard GB / T 308-2002.