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M Surface finishes

M40 Stone/ concrete/ quarry/ ceramic tiling/ mosaic: 5, 110
N Furniture/ Equipment

N10 General fixtures/ furnishings/ equipment: 145

N13 Sanitary appliances and fittings: 10, 15, 18, 20, 25, 30, 35, 40, 300, 302, 311, 315, 321, 325, 331, 335, 346, 355, 361, 375, 379, 382, 386, 388, 420, 429, 436, 438, 448, 449, 456, 458, 460, 462, 464, 466, 468, 470
S Piped supply systems

S10 Hot and cold water supply systems: 480

S90 Hot and cold water supply systems - domestic: 68, 690