Base Material: FR1, FR2, CEM1, CEM3, FR4, BT Copper Thickness: H oz to 6oz Board Thickness: 0.4mm to 3.2mm 1.many years of experience for the hdi pcb design and fabrication;2.having the advanced pcb fabrication line;3.high qualityWe offer one-stop service ranging from product designing, electronic circuit hardware designing, PCB circuit designing, microcontroller researching and development, PC ...