ASTM C564 Standard Specification for Rubber gaskets for cast iron soil pipe and fittings污水铸铁管及管配件用橡胶垫圈标准规范
This ASTM C564 specification defines the required properties of lock-strip gaskets where resistance to sunlight, weathering, flame, oxidation, permanent deformation under load, and diminution of gripping pressure are prime essentials.
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