... internal wiring of electronic and electric equipment Hook-Up Wire (UL1330, UL1331, UL1332,1333,1709,1710,1726,1727,1857....)Features: ... standards: UL Subject 758, File NO.:E2275874) Tinned or bare, stranded or solid copper conductor5) Silicone rubber,FEP,PFA,MFA insulation6 ...