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: 4mm / 0.16 inch(Minimum) ; 7mm / 0.28 inch(Maximum)Total Size: 10.5 x 9mm / 0.41 x 0.35 inch (H*Max Outer Dia) Package Content:100(+/-2%)pcs x Ceramic Insulator.
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