... -stop service 3.quicker delivery 4.UL,ISO9001, pcb board manufacturer/pcb board factory 1.Number of Layer: 1 to 28 layers. ... 2.Base Material: FR-4, CEM-3,CEM1 ... applications, including hand-phone motherboard, LCD of mobile, computer display card, blind&buried board, wireless router, medical equipment, MP4 players, DVD ...