1)Rigid-flexible pcb board. 2 We can produce 1 to 6 layer FPC 3)UL, ISO 9001, ... :Immerison gold Finished board thickness: 40+/-4mil Application: Hardware Zone Carrier Product process capability1,Layer: 1 ... lead free,HAL,Chemical tin,Chemical Gold,Immersion Silver/Gold,OSP, Gold plating.8,Copper thickness:0.5 ... specific requirements, please contact us. Our PCB got UL,SGS,ISO9002,RoHS,QS9000 and TS16949 ...