... PCB and FPC board 4. UL, RoHS, SGS High Quality PCB Manufacturing Shenzhen Yuzhixiang Electronics Co., Ltd, also named ... production for our customers:1-2 layer in 24 hours, 4 layer in 48 hours, 6 ... Hi-frequency PCB1) Sample within 6 days for high frequency board2) Normal pcb within 4 days for ... (RoHS Compliant) , CEM-3, CEM-1, Aluminium, High frequency Material (Rogers, Teflon, Taconic)Layer No.1 - 30 ...