Shenzhen knownpcb technology co.,ltd was established in 2008,invested by knownpcb of hong kong. with more than 15 yearsâ?? development,now owned three production plants in shenzhen, sichuan and jiangxi, which are respectively dedicated to the high mix prototypes from 2 38 layers with fast deliveries, small to medium batches from 1 28 layes, multilayers and hdi mass production.meanwhile in order to meet customers' one stop demand from pcb design to pcba, knownpcb added 3 fully automatic smt production lines in 2015..Production