... . Iron. Alumina (Zincification & Nickelplate)2.Current: 5A-250A3.Voltage:250v,300v,450v,600v4.Style:1wire,2wires,3wires5.Fittings:cooper ... in electronic wiring ,electrical appliances, electrical and mechanical equipment etc. *) Stability, anti-aging,and high temperature resistance *) Features: it is used ... ceramic connector porcelain terminal block ( 4 years golden supplier )High frequency porcelain