printed circuit board with thick copper 4OZ circuit boards inside and outside.

printed circuit board with thick copper 4OZ circuit boards inside and outside. Our main products PCB circuit boards, FPC circuit boards, flexible and hard combination boards, PCBA one-stop production, products covering medical, security, new energy, camera, industrial control and other fields, looking forward to working with you! Minimum aperture 0.10mm, minimum line width 0.050mm, board thickness 0.10-6.40mm, surface treatment including spray tin, immersion nickel gold, immersion palladium gold, electroplated gold, etc..PCB