BS-3457 › Specification for materials for water tap and stopvalve seat washers
Specification for materials for water tap and stopvalve seat washers
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21.060.30 (Washers, locking elements)
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Document Number
BS 3457:1973
Revision Level
1973 EDITION
Status
Superseded
Publication Date
Oct. 8, 1973
Page Count
8 pages