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See Chinese contents: JB/T 8872-2016 JB/T 8872-2016: Specification for carbon-graphite sealing ring for mechanical seals
This Standard specifies the product classification, requirements, inspection methods, inspection provisions, marking, packaging, transportation, and storage, etc. of carbon-graphite sealing ring for mechanical seals. This Standard applies to the material selection and design of carbon-graphite sealing ring for mechanical seals.
