Renovations include masonry work, new roofing and window work. A capitol idea Type 27 wheels are for metal and masonry work in sizes ranging from 3-9 in diameter, and Type 28 wheels are specially shaped for flat or corner grinding, and are available in 7 and 9 diameters.
Karst is a type of landscape where the dissolving of the bedrock has created sinkholes, sinking streams, caves, springs, and other characteristic features. Karst is associated with soluble rock types such as limestone, marble, and gypsum.
Entrances may be created by a valley enlarging and exposing a section of the cavern on the side of a hill, the collapse of a sinkhole, or the intrusion of man's developments into the surface. Limestone caverns are commonly found in karst terrain. Karst comes from the Slav word krs meaning crag or stone.