40 custom machining, namely, turning operations, milling operations, grinding on the horizontal plain grinder, operations on horizontal press and vertical press, curling of sheet metals, welding operations and fitting operations, refurbishment of worn parts, plasma and oxygen shape cutting, ball mill housing; finishing of metal materials for others; ball mill housing, rotary kilns, barker drums and driers for cement factories, lime works, sugar factories, the chemical industry, rock crushing plants, tire manufacturers, paper mills, steelworks and power generating plants, horizontal boring machines, vertical forming machines, universal plain grinders, hydraulic presses, metal sheet and section curling machines, gate valves, bar valves, two-way and three-way branching valves, cylindrical valves, forced and gravitational swing gates for cement factories, lime works, sugar factories, the chemical industry, rock crushing plants, tire manufacturers, paper mills, steelworks and power generating plants, custom manufacturing of machinery for chemical, manufacturing and electrical industry, namely, turning operations, milling operations, grinding on the horizontal plain grinder, horizontal-press and vertical-press, curling of sheet metals, welding operations and fitting operations