... . We offer low-volume,Prototype and Production PCB fabrication service, for rigid or flexible, RoHScompliant, High Tg boards. All project comes with ... , Imm Gold,Imm Tin,Imm Silver, OSP etc.Board materialFR-4 glass epoxy, FR4 High Tg, RoHS compliant; Aluminum, Rogers, etc.Insulation ... .5N/mmThermal stress288°C20 SecondsFlammability94V-0Test voltage50-300V 6 layer high Tg PCB board