1.Double side-HASL Board 2.2layers with HASL 3.1.2 mm thickness board 4.UL,ISO9001 certificate 5.Red Oil ... with FR-4 material Double side-HASL board 1.Transportation by air,by ship,by express ,up ... gold finger platingProduction typeHigh precision multi-layer board,Blind hole board, Buyerd hole board,High frequency board,Aluminium backed boardCertificateISO9001.UL etcWelcome to ...