There are 3 companies that I find it hard to ignore and there seems to similarities in their business model, products and services. I did not spend a lot of time reading up their annual reports, but a brief profile introduction in yahoo finance mentioned that all these companies engage in the business of precision machine parts or tools, mechanical, electrical & electronic devices. See below:
Spindex Industries Limited, together with its subsidiaries, engages in the manufacture, import, export, and trade of mechanical, electrical, electronic, and precision machine parts, as well as other engineering materials. It provides precision turned parts, such as shafts, mini shafts, sleeves, and other critical components used in a range of applications, including consumer copiers, facsimiles, laser printers, inkjet printers, scanners, multi-function centers, commercial printers, commercial offset printers, etc.
Innovalues Limited engages in the manufacture, assembly, and sub-assembly of precision turned machining parts, components, and electronic ......