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Product Name: Whirl Bow-spring Casing Centralizer Product description: This kind of casing centralizer is improved on the base of bow-spring casing centralizer. Whirl blades are welded on the middle of bow-springs, which can form bumpy flow during circulating mud or slurry to improve the cementing quality. Its principle and specification are just as same as non-welded bow-spring casing centralizers.
