Listing ID #2249127
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Contact SupplierThe groove and tongue faces of these flanges must be matched. One flange face has a raised ring (tongue) machined onto the flange face while the mating flange has a matching depression (groove) machined into it's face.
tongue-and-groove facings are standardized in both large and small types. They differ from male-and-female in that the inside diameters of the tongue-and-groove do not extend i