... 5.Green HDI multilayer pcb1.Name of the commodity: High Frequency Heavy Copper PCB2.Small order available3.Certificate:UL ... 4,Aluminium-backed board,Halogen-free,Lead-free compatible,High Tg,High CTI,CEM-1,CEM-3 etc. Mass productionSampleMax ... finger platingProduction typeHigh precision multi-layer board,Blind hole board, Buyerd hole board,High frequency board,Aluminium backed boardCertificateISO9001. ...