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1985 |
Formed Nam Fung company, Started to manufacture 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 domes). |
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1987 |
Reform the Company named as True Tone Industries Ltd., continuing in metal domes manufacturing.
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1989 |
Purchased our own Factory Plant in Camel Paint Factory Building. |
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1990 |
Started to manufacture metal domes by Top Grade Japanese materials only. |
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1993 |
Moved and expanded our factory plant at Winner Factory Building . |
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1994 |
Installed E.D.M. machines to stabilize our Tools.
 E.D.M. Machine |
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1996 |
Installed Taiwan made Automatic Presses both to improve product stability and production volume. |
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1998 |
Imported Gold, Silver or Nickel-plated stainless steel to meet some particular customers’ requirements. |
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1999 |
Doubled our manufacturing floor again to meet market demand up to monthly output of 30 million pieces of domes. |
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2000 |
Imported various measuring & testing equipment specially designed for electrical switches industries to support both our customer’s quality requirements and us.
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Life Test Machine |
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2002 |
Certified ISO 9001:2000 Manufacturer by TUV on Feb 2002.  |
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2003 |
The 4th time doubled our manufacturing floor to improve production management & control . |
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2005
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Adding numbers of high speed automatic presses to increase the productivity to 40 million pieces of domes per month.
Planning seriously to upgrade our technology, technique and equipments for our tools fabrication.
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