AIA Engineering Ltd. Supplies Tube Mill Liner. AIA Engineering Ltd. Has been awarded with ISO 9000 certification. Tube Mill Liner is used in Balls Mills [or Tube Mills] in Mines, Cements Plants and Thermal Power Plants. Tube Mill Liner is available with Length and Diameter of Mill, Speed of Rotation or % of critical Speed, Drilling Pattern, and Circuit Consideration including separator and ventilation system and various type of Pre-Grinder.