... : FR-4, CEM-3 Copper Thickness: 18um-105um Board Thickness: 0.2-3.2mm Min. Hole Size: 0 ... : 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 ... 2008-Markets: Europe, America, Asia lead free printed circuit board fabrication