Cork rings ROTILABO®, Suitable for: Flask 10 000 ml | Stands and cork rings | Round flasks and flasks with ground glass joints | Laboratory Glass, Vessels, Consumables | Labware | Carl Roth - International
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5Piece/lot Diameter 80mm To 160mm Laboratory Synthetic Cork Ring Holder For 50ml-20000ml Round Bottom Flask - AliExpress
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Tebru Lab Cork Holder, Cork Ring Holder, 80/100/110/120/140/160mm Multiple Laboratory Synthetic Cork Ring Holder for Round Bottom Flask - Walmart.com
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