... Free sample test. We offer low-volume,Prototype and Production PCB fabrication service, for rigid or flexible, RoHScompliant, ... Imm Gold,Imm Tin,Imm Silver, OSP etc.Board materialFR-4 glass epoxy, FR4 High Tg, RoHS compliant; Aluminum, ... Automatic electroless gold plating line: E-testing line: Planar exposure machine:AOI testing machine: Soldermask&Silkscreen machine: 2 layer black soldermask led pcb ...