US$ 99.00
5-inch porcelain plate drops into 20cm vacuum desiccators to support samples above the desiccant bed during drying and dehumidification
this 20mm-diameter steel helix carries longitudinal
illustrating the high-ratio speed reduction and self-locking action of worm gearing
and silk cloths with glass
3-Level Stackable Wooden Tower for Building Bricks, 22 inch Science at Home_Life Science 5-inch porcelain plate drops intoThree level wooden tower stands 22 inches tall with three 10 inch base plates compatible with major building brick brands for stacked construction play.