... choice for drainage inside the building.1) For no-hub pipe: Standard: EN877, ISO6594; ASTM A 888, CISPI301 Nominal Size: ... , single branches, double branches, corner branches, unequal branches, down pipe support, spigot caps, reducer, traps, access pieces with circle door ... , access pipeces with rectangular door, access pieces with manual door, etc.Surface finish: With epoxy resin or powder. ...