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1598 cob pcb assembly products are offered for sale by suppliers on Alibaba.com, of which other pcb & pcba accounts for 79%, pcba accounts for 14%, and rigid pcb accounts for 1%. A wide variety of cob pcb assembly options are available to you, such as factory, odm and oem/odm.You can also choose from electronic device, communication and oem electronic cob pcb assembly,As well as from hasl, hasl lead free cob pcb assembly,