1.HASL(Hot Air Solder Leveling) Surface Finishing Technology. 2.Single board/2 Layer/Multilayer OEM&ODM Printed Circuit Board. 3. Famous Brand, Quality Guaranteed. 4. 100% Functional Tested. 5. UL,RoHS, SGS, ISO9001, ISO14001 Certificated. 6. Short Leadtime and Fast Delivery 7. NDA Signment 8. Any Question will be Replied ASAP(within 24 hours).