Professional Manufacturer of PCB; ROHS certificate; PCB copy,design,assembly,testing,one stop service; Professional Manufacturer of ... . Surface finishing: HASL, Lead-free HASL, Immersion Gold, OSP, Edge connector, etc. 3. Products range: PCBs from 1-10 layers 4 ... . Min. finished hole size: 0.2mm 6. Output: 30, 000m2 PCB per month 7. Certificate: UL, ROHS, ISO9001 8. Advantage: Good ...