00431nam a2200109Ia 4500008004100000245016600041260000900207500004500216650002200261650001900283650001900302220217s9999    xx            000 0 und d 0aDimensional requirements of rubber gaskets for mechanical joints and push-on joints for use with cast iron pipes and fittings for carrying water, gas and sewage.  c1989  aStandard number: IS 12657 ISO 4672; 1988  aMechanical joints  aPush on joints  aRubber gaskets