... , Black, Blue, transparent photosensitive soldermask, Strippable soldermask.15Minimun thickness of soldermask10um16Color of silk-screenWhite, Black, Yellow ect.17E- ... , ODB++20Special technological requirementBlind & Buried Vias and High Thickness copper21Thickness of Copper0.5-14oz (18-490um) 3> Quote ... products, - Survive by quality, Win by Price. 0.2mm Board Thickness Immersion Gold Flex-Rigid PCB