Quen Lin Instrument Co., Ltd. was established in October 1992, mainly for the manufacture of dental unit and chairs, develop new products, patent development, reform of old dental units & chairs, physicians and patients to make it more suitable for the use and treatment peace of mind, also set up service team which has many years of manufacturing expertise base, and outstanding research personnel. Company uphold the excellent manufacturing technology, brand "GRACE" dental instruments, and in 200... More