Resolve the key system on the trunking by drilling through the base and screwing into placement with flathead wood or steel screws. Oversize holes must be drilled to allow for growth/ contraction and huge washers used under the screw to provide appropriate assistance. *Costs are pre-tax. They exclude supply prices https://martinfvwly.articlesblogger.com/50794914/5-simple-techniques-for-round-conduit