Electrothermal head normally closed with switch contact ( 4 wires ).

热电阀,通常带有开关触头 ( 4根电缆 ).

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Force needed to add to the executer unit to actuate switch contact.

使开关触点回复到正常位置,所必需减少施加于操动器上的力.

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The main production: solid oil switch contact, solid self - contact and alloy material for contact.

主要产品油开关整体触头 、 自力型整体触头及触头用合金材料.

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