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 　　Parameters 　　Layers1 　　Base MaterialSF230 ，0.5 OZ ，0.12 MM finished 　　Minimum Line Width/ Clearance ：0.45 mm/0.45 mm 　　Size ： 76 mm × 64 mm 　　Face treatment ： ENIG 　　Crafts 　　Special Process ： Raised Point        https://www.ymspcb.com/2layer-raised-point-flexible-board-ymspcb.html 　　Operations 　　Medical Instrument 　　Critical model after 24-48 hours/ generally after 2-3 days dispatching 　　When circuits are too complex for single caste wiring or bull counter is demanded for resting shielding, double- caste or indeed multilayer boards are demanded. The most typical difference between a laminate and a monolayer is the addition of a through- hole structure to connect the layers of bull counter. General substrate transparent tenacious bull antipode the first processing process is the product of holes. First in the substrate and bull counter drilling, drawing and plating a certain viscosity of bull, and also through the hole is finished. And the coming process is n...