... in1999,which has always insisted on the objective of creating a world class brand and devoting to create a hi-tech PCB enterprise in ... -layer board ,Aluminium/copper/ceramic boards ;Nowadays , ZXH has become a large scale PCB manufacturer in China .ZXH headquarters in Longgang ... of Shenzhen with 1,2000 square meters of office area, where is the group center of R&D, sale ,Market, Logistics and Purchase ...