roller centralizer

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  • 2022-05-10

    1. Introduction of casing centralizerThe casing centralizers are used to protect sucker rod to reduce wearing.2. Material2.1. Super strength spring steel2.2. ASTM A395 ductile iron ,or equivalent international series number.2.3. Polyester centralizer2.4. Aluminum alloy3. Structure3.1. One or double