EPPO working with 2 assembly plants in Shenzhen both 2 factories with over 10 years experience in pad/ silk screen printing, painting, laser engraving, ultrasonic welding, soldering, battery aging test, RoHs test, 8 assembly lines each with over 20 staffs provide flexible assembly service for worldwide customers, no matter products in 500 or 500,000 pcs, we can help customers get quality assembled products in short time.