KSD301 snap action thermostat is small-size bimetal thermostat series with a metalcap, which belongs to thermal relays' family.
KSD301系列突跳式温控器是小型双金属片温控器，属温度继电器类器件。
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There's the small corner store, just a quick bike ride down one street and up another, where I can get an ice-cold soda in a glass bottle with the red metalcap.
Furthermore, the double seal of the fuse is formed in common by the 'o' shaped sealing ring and an adhesives layer filled between the metalcap and the fuse tube.