Double-sided Pcb Fr-4

4116 double-sided pcb fr-4 products are offered for sale by suppliers on Alibaba.com, of which double-sided pcb accounts for 40%, pcba accounts for 19%, and single-sided pcb accounts for 1%. A wide variety of double-sided pcb fr-4 options are available to you, such as fr4, aluminum.You can also choose from hasl, enig double-sided pcb fr-4,as well as from electronic device, universal, and mobile phone double-sided pcb fr-4,