... in China,Shenzhen.Specializing in Double Side PCB, Multi-Layer PCB, F4BK PCB, Ceramic PCB, Rogers PCB, Aluminum PCB.1.Single-sided, double-sided and multi ... lead free, Immersion Gold/ Silver/Tin, OSP3.Fast turnaround Prototypes & mass production.4.Lead time of 7-21 days, according to ... quantities and PCB types.5.Lead free Materials (RoHS Compliant).6.ISO9001& ISO ...