Richest offers a comprehensive range of cartridge mechanical seals, single seal, or double seal, which is alternative to Flowserve pump seal and John crane seal, for worldwide customers’ choice from its China based manufacturer. Richest cartridge mechanical seals serve a wide range of industries for sea water and waste water, chemical industry, oil & refining industry, and food industry. At Richest, RS series cartex cartridge mechanical seals, and RS56 series John crane mechanical seals are most widely used home and abroad, with secondary sealing of NBR, FKM, EPDM, and FFKM. Should you have any sealing problems, don’t hesitate to contact us with the most effective solutions.

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