... 3. Reply Email in 4 hours 4. SGS,RoHS,UL Network Refrigerator control systemCircuit board assembly fabrication:One-stop pcb assemblies ... ,CEM-1,CEM-3,Hight TG,FR4 Halogen Free,3Board thickness0.2mm-3.5mm4Max panel size630mm*520mm5Min.drilled hole size0.5mm6Min.line ... .0514CertificateUL,ISO9001,ISO14001,ISO/TS16949,ROHS15profiling punchingRouting,V-CUT,Beveling Network Refrigerator control system