BS 497:1945

Original price was: $264.16.Current price is: $132.00.

Cast manhole covers, road gully gratings and frames for drainage purposes

BSI Group , 02/01/1949

Pages: 28

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This British Standard provides for manhole covers and frames of the grades and types given in Part Two and for road gully gratings, covers and frames of the grades and types given in Part Three, all of which shall comply in every respect with the requirements laid down herein.