About products and suppliers
4997 fr4 copper products are offered for sale by suppliers on Alibaba.com, of which insulation materials & elements accounts for 28%, other pcb & pcba accounts for 21%, and pcba accounts for 17%.
A wide variety of fr4 copper options are available to you, such as high voltage, high temperature and low voltage.You can also choose from pe, epoxy resin and composite polymer fr4 copper,