Manufacturers of Spindle Tapes and Flat Belts . Elgi Ultra Industries Ltd is a leading manufacturer of Process and Conveyor belts and has a unique reputation for developing innovative solutions for belting applications. Elgi Ultra Industries Ltd offers wide range of power transmission belts, tangential belts, spindle tapes, machine tapes, conveyor belts and loom components. Elgitex products delivers increased service life, higher reliability, reduced energy consumption and improved price /value ratio.