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This Centralizer is made of High-Strength, Corrosion-Resistant Cast Aluminum. They can be used with corrosion-resistant alloy casing strings to avoid the effects of galvanic corrosion. Provides positive standoff between casing and wellbore. Made of softer material than wellhead equipment to avoid damage to the wellhead when running through. If rotation is not required then just tighten up the screw.

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