... top grade socket 3.RoHS certificate Terminal block connectorGongtao company specializes in supplying ceramic connecting terminal support,ceramic accessory, electrothermal ceramic ... the customers’requirement.There are 3-pole,4-pole,5-pole or,more connections can be assembled and ... breakdown strength 15—20KV/mmCoefficient of linear expansion(6.5—8)×Tolerance of size≤±0.1mmVoltage110V-600V,current:15A ...