About product and suppliers:
            4,019 dark assembly products are offered for sale by suppliers on Alibaba.com, of which other pcb & pcba accounts for 1%, pcba accounts for 1%. 

A wide variety of dark assembly options are available to you, 

There are 4,019 suppliers who sells dark assembly on Alibaba.com, mainly located in Asia. The top countries of suppliers are China, Malaysia, and Indonesia, from which the percentage of dark assembly supply is 98%, 1%, and 1% respectively.