... be directly soldered to contact bridges, without the need for additional solder layers, thus making manufacturing of contactor ... AgSnO2 and AgSnO2In2O3 are the ideal environment-protecting materials for substituting AgCdO. Since SnO2 has better thermal stability and ... is more difficult to processing these two materialsUsage:Breaker,relay,contactor,timer,thermostat,train,swithes and other home ...