We are zhejiang hengyu electronic s based in Shaoxing , China. We are member of Tradekey.com since November, 2011. Our business is related to Electrical & Electronics Supplies industry and we specifically deal in copper clad laminate. Please find our product details below: HY FR4 Product: FR4-CCL Standard: IPC-4101C/21 Certificate: UL/ROHS/SGS, /ISO9000 Copper foil: single side/double sides Thickness 0.2mm~3.2mm Thank you for taking the time to go through our business profile. If there are any question, inquiry or comments, please feel free to contact us.