... FR-4, CEM-3 Copper Thickness: 18um-105um Board Thickness: 0.2-3.2mm Min. Hole Size: ... HASL / HASL lead free, Chemical tin, Chemical Gold, Immersion Silver/Gold, OSP, Gold plating Certification: UL, ROHS, ISO9001:2000 Lead free ... free HASL PCB-Lead free HASL Surface finish required to meet ROHS compliant-FR4 material with 0.2mm- ... : Europe, America, Asia lead free printed circuit board fabrication