... copper,≤0.5mm Pull test,≥5KN/cm2 Temperature cycling,-65°C~200°C 5 circles Plating thickness,2-7μMain materialCeramic,93 ... .5%min AL2O3 Glaze,Color white ,T ≥14 0°C Flange,TU1(OFHC·Cu)or Ni42Fe58 Alloy Copper contact,TU1 ... ,TU1(OFHC·Cu)or Ni42Fe58 Alloy Ceramic Housings for Stud mounted construction cap series