... Best price 4, Quick delivery 5, Considerate service Four-Layer PCB of High Quality Board Material: imported ... board:606*530mm(board thickness>1.2mm)F, Six layer pcb:430*430mmG, Eight layers:430*430mmH, ... ISO 9001, SGS Company Profile Zhong Xin Hua Group was founded in1999,which has always insisted on ... where is the group center of R&D, sale,Market, Logistics and Purchase. And four production bases occup ...