... .Top quality with competitive price 3.ISO,UL,RoHs,SGS Double Sided PCB 1.We have over 10 years experience in PCB ... ±0.10mm(4mil)12Twist & Bent0.75%13Insulation Resistance>1012 Ω Normal14Electric strength>1.3kv/mm15S/M abrasion>6H16Thermal stress288°C 20Sec17Test Voltage50 ... ,H-TG,Teflon,Rogers,Ceramics,Aluminium, Copper base Lead Free Double Sided PCB Board