Schneider XB4BA21PB SPST-NO Black Spring Return Industrial Switch

Black - A colour which does not emit any colour of the spectrum. Black absorbs all frequencies of the spectrum.

Diameter - A measurement across a circle passing through the middle

Electric - A general term for the flow of electric charge

Button - A round or square object used for fastening clothing or other items

button - A small fastener used on clothing to secure two pieces of fabric together.

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