... 0.15mm4-layer 0.4mm6-layer 0.6mm8-layer 1.5mm10-layer 1.6~2.0mm4Min. line Width/Space0.1mm(4mil ... 4mil)12Twist & Bent0.75%13Insulation Resistance>1012 Ω Normal14Electric strength>1.3kv/mm15S/M abrasion>6H16Thermal stress288°C 10Sec17Test Voltage50-300V18Min ... , Imsn OSP, Plating AG, Plating gold20MaterialsFR4,H-TG,Teflon,Rogers,Ceramics,Aluminium, Copper base 1 layer aluminium base mcpcb board factory