One pH Probe Pin. Analytical Chemistry Laboratory Series.
Craft: Hard Enamel
Material: Iron, Gold Plating
Dimension: 3.5 x 2.4 cm
Attachment: 2 Rubber Clutches
pH Probe Badge Pin - Metallic Hard Enamel
pH Probe Pin. The material is hard enamel (gold plating) with two black rubber pinbacks.
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