... 4.Quick turn,OEM Service. Printed circuit,RoHS PCB,PCB UL.Quick Details1.Place of Origin : Shenzhen China ... .1.Our product rangeSingle PCB, Double PCB,Multi-layer PCB,MCPCB,High frequency PCB and Metal-backed PCB,etc.2.Product qualityOur ... , Gold Plating (Flash Gold), OSP, etc.14SoldermaskGreen, White, Red, Yellow, Black, Blue, transparent photosensitive soldermask, Strippable soldermask.15Minimun ...