M-Tech Engineering Ltd , Unit 1, Third Avenue, Greasley Street, Bulwell, Nottingham UK, NG6 8ND Phone 0115 9794448      Fax 0115 9794449 Stone M-Tech has been involved in a number of projects where the client has requested a stone element to the staircase. The most popular being Limestone. We have a number of suppliers that work closely with us to ensure both the steel and stone elements are installed seamlessly.