1 |
ADAPTER RINGAlso called a “Stepping ring” - enables a filter of one size to be attached to a lens of another size.
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ADAPTER RINGA fabricated ring, usually made from steel, that serves to mate the microtunneling machine to the first pipe section. The purpose of the adapter ring is to create a waterproof seal between the machine and the spigot of the first joint.
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3 |
ADAPTER RINGcircular mount, available in several sizes, enabling accessories such as filters to be used with lenses of different diameters.
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