Sun Chain Group has worked in ball bearing slide for more than 15 years. Sun Chain quality is further enhanced by an on-going program of field and training of leading customers as Benz, SAAB, Fulterer, Indaux, Siemens, and etc,. We have been certified by ISO 9002 in 1995 and ISO 9001 in 2002. Our products are tested following the ANSI/ BIFMA, BS, DIN standard specification and the reliability approved by BIFMA, FIRA, LGA/ DIN, and some other international test laboratories.