CAN/CSA-B70.1-03 (R2017)
Current
The latest, up-to-date edition.
Frames and Covers for Maintenance Holes and Catchbasins
Hardcopy , PDF
English, French
01-01-2003
Preface
Foreword
1 Scope
2 Reference Publications
3 Definitions
4 Frames and Covers
5 Seating Surfaces
6 Quality of Work
7 Locking Devices
8 Marking
9 Quality Control
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