200 mm Hole for Service Sprinkler Pipe

x1 200 diameter hole through a 300mm R/C slab for HBS Building Services. The reason for the hole was for a new service, for instance, a sprinkle pipe.

x1 200 diameter hole through a 300mm R/C slab for HBS Building Services. The reason for the hole was for a new service, for instance, a sprinkle pipe.