... prototypes, small-medium volume, and high volume projects.Quick turn, good quality, schedule selivery,best price. For making PCBA, customer just need ... excellent service.2. FR-4, FR-4 High TG, CEM-1, CEM-3, Aluminum base material.3. HAL, HAL lead free, Immersion Gold ... from prototype to medium and batch production. Pcba assembly service for power board