Structure: High quality copper wire Imported bearings from Japan Sturdy coils after high temperature and high pressure treatment High quality permanent magnet Wear resistant metal shaft High quality plastic back coverCertificates: ISO9001 CERTIFICATE SGS CERTIFICATE ROHS CERTIFICATE CUSTOMERS PRAISE MAILDeliver Shipping and ServingWe can provide an comfortable shopping experience for our customers and offering door to door service.Once the customer finished the payment, we will make fast production and delivering to customer's of...