Features:Insulatsion, high corrosion resistance, scratch proof and Good chemical stability.Mainly used in electric heating elements, protection sheaths, insulators and fish beads for temperature sensors. Specification:Material: CeramicInner Diameter: 11.5mm / 0.45 inch(Minimum) ; 16mm / 0.63inch(Maximum)Total Size: 17 x 20mm / 0.67 x 0.79 inch (H*Max Outer Dia) Package Content:30pcs x Ceramic Insulator.
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