20 мл 16x150 мм прозрачная пластиковая пробирка с нажимными колпачками для научных экспериментов, вечеринки, украшения дома, хранения конфет

test plastic tubes for laboratory tests; round bottom with screw-on top. ideal for samples food color craft household etc. these were ready for use as centrifuge tubes and are thus dense. chemically resistant to most acids alkalis and many common solvents. plastic reaction vessels for laboratory tests