1). FR-4 Tg170, Lead-free, Low Z-axis CTE, Low water absorption. 2). Excellent thermal stability and anti-CAF performance 3). 2-30 layer, 1.6mm thick 4). 1 oz copper finished 5). 10% impedance control 6). Immersion gold, HASL LF. 7). High-count layer PCB, computer, communication equipment, precise apparatus and instrument, router.