For starters, the material used in the body of ... designed for water runoff, creates a surface that doesn’t match with the utility cover, which is level, Wehr said. Also, the covers themselves ...

Manning says the auger-fed Magnum moves roughly 50% more material than ... should make sure the utility constructs the patch at least 3/8 inch below the pavement surface. "That's so we have ...

Ceramic surfaces do not have a regular structure in most cases. The surface finish quality is hugely influenced by the geometrical deviation of the material and the crystal size. A finish with lapping ...