... ; 410 * 175. 2.Used for various mechanical walking device, wheel surface by intermediate frequency quenching, quenching depth, hardness ... and 5 mm - °, durable, is mainly used for mining machinery. 3.Process: material after forging, rough machining, heat ... specifications, various material road wheel. Mainly used for mining machinery walk device, using and mncrb5-2 materials, rim through ...