Number of layers: 10 Surface finish: ENIG Base material: FR4 W/S: 4/4mil Thickness: 1.6mm Min. hole diameter: 0.2mm Special process: Blind Vias Advantages Of 10 Layer ENIG Blind Vias PCB Own lamination process to convenient production for Multilayer PCB and shorten the lead time. Jiangxi facility is environmental-friendly approved by the government . Famous raw materials brand, Kingboard, Shengyi, ITEQ, Taiyo, Guangxin. Highly automated production line with AIO Optical Scanning, Electroplating Automatic Line, High-speed flying probe test machines and inkjet printer.