1. Al base material,1 oz copper, board T1.6mm 2. Black ink, Hasl lead free 3. Excellent quality with competitive price 1. Al base material,1 oz copper, board T1.6mm2. Black ink, Hasl lead free3. Excellent quality with competitive price4. Round pcb5. Certificate: ROHS, UL, ISO9001-2000, ISO14001Our Manufacturing Capability for PCB Board1). Material type: CEM-3,FR-4,FR-4- TG170/TG180, Halogen Free, ...