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Continue to ChatGlass Blowing Tubes Super Thick Wall 2.5mm -12mm OD https://www.scienceequip.com.au/en-de/products/glass-blowing-super-thick-tubes
Glass Blowing Tubes Super Thick Wall 2.5mm -12mm OD https://www.scienceequip.com.au/en-de/products/glass-blowing-super-thick-tubes