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.
This type of topography indicates that water is close to soluble bedrock such as limestone, dolomite, gypsum and rock salt. Karst topography is found throughout the world; in the U.S. it is particularly important for mapping large cave formations such as Mammoth Cave and the Fisher Ridge Cave System in Kentucky, Jewel Cave and Wind Cave in South Dakota, and the Friars Hole System in West Virginia.