As reputed professional top quality low price famous heavy copper PCB manufacturer from China, Patt Circuits fabricate heavy copper cuicuits boards from 2oz copper thickness to more than 20oz copper thickness. Patt circuits supply heavey copper PCB to many famous well-known top companies in many different industries. With long time professional heavy copper PCB manufacturing experiences and professional heavy copper PCB fabrication knowledge, Patt is your best choice for heavy copper PCB manufacturing partner.