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Published: 2006 | Category: Unsealed pavements , Maintenance , Specifications | Audiences: Road traffic engineers & consultants, Roading contractors
HM23 Unsealed pavements replaces specifications TNZ C11, C12, C13 and C14. However, if TNZ C11, C12, C13 or C14 are referred to in existing contract documents then you may continue to use them.
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