Scientists. The ground glass joint has been around for nearly 100 years.
At some time someone in this industry decided to add a joint to the glass, moving away from a slide downstem with a slider bowl and grommet.
Scientists. The ground glass joint has been around for nearly 100 years.
At some time someone in this industry decided to add a joint to the glass, moving away from a slide downstem with a slider bowl and grommet.