The ring stand is simply a metal rod attached to a heavy metal base. The heavy base keeps the stand stable, and the vertical metal rod allows for easy height adjustment of the iron ring clamp.
a ring stand is an piece of equipment used in a scientific lab. the use is to hold substances over a lab table and heat the substance evenly, you can find lots of pictures on Google images
Iron ring/clamp An iron ring/clamp that holds glassware such as a funnels or other objects, like the a wire gauze or clay triangle for heating with a Bunsen burner. Often, the iron ring/clamp will be...
There is a wedding ring which is used for two people who are married. They exchange the rings they bought for the one another (their lover) and then on the day of the marriage they have to exchange...