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1985 |
Formed Nam Fung Company in Hong Kong, started to manufacture metal contact domes (metal domes).
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1986 |
Joint Venture with Mel Bowman Assoc. USA. Mel Bowman Assoc. is Engineering & Marketing house in USA whose expertise is in metal contact parts (metal contact domes). |
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1987 |
Reformed the Company and named as True Tone Industries Ltd., continuing in metal contact domes manufacturing.
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1989 |
Firstly purchased our own factory plant in Kwun Tong Industrial Area in Hong Kong.
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1990 |
Started to import materials directly from Japanese and American material suppliers to upgrade the quality.
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1993 |
Moved and expanded our factory plant in the same industrial area.
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1994 |
Installed Electrical Discharge Machine (E.D.M.) to upgrade our tooling.
 E.D.M. Machine |
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1996 |
Installed Japan and Taiwan made high speed Automatic Presses to upgrade products stability and to ensure quality. |
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1998 |
Imported Gold-plated, Silver-plated and Nickel-plated stainless steel materials from Japan to manufacture metal contact domes to fulfill particular customers’ requirements.
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1999 |
The third time to move and expand our factory plant to meet our target on annual output up to 30 million pieces of metal contact domes.
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2000 |
Especially imported various measuring and testing equipment such as life testing, conductive testing equipment, etc., to meet various electrical/membrane switch manufacturers’ requirements.
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Life Test Machine |
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2002 |
Certified ISO 9001:2000 on the Manufacturing of Metal Contact Domes for the Electronic Industry by TUV on February 2002. |
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2003 |
The fourth time to expand our factory plant to improve production management.
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2005
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Adding numbers of high speed Automatic Presses to increase another 30% productivity.
All our products have been tested to be complied with the RoHS by SGS Hong Kong Ltd.
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2009 |
Efforts to upgrade our technology, technique and equipment for tools fabrication.
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