Kovar alloy pin 4J28 4J29 4J50 Kovar alloy glass seal machine processing 4J29 4j36
Ｂrand：Hongchangcheng Electronics
Operating temperature：300 degrees
Flammability rating：4J29 50
Warranty：Kovar alloy 4J28 29 material
3C certificate number：CCC
3C rated voltage range：220-240
$1.40
