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| 1961 | Foundation of OSTACO AG in Zurich, Switzerland, under the name of TACO ARMATUREN. "It was the European headquarters of TACO Inc. from Cranston, Rhode Island, USA. It's business activities were the marketing of HVAC products from TACO USA on the European countries". |
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| 1976 | Introduction of the VALTACO ball valve line. | |
| 1979 | Foundation of VALTAC Ltd. in Stone House, England. | |
| 1988 | Foundation of VALTAC Ltd. in Traismauer, Austria. | |
| 1993 | VALTAC got the Fire test Certificate from Score (Europe) Ltd./ Lloyd's Edinburgh Which means that, in the case of fire, are safe. No internal or external leakage may occurs. |
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| 1995 | The alternation of the company name to OSTACO AG, as a result of the American former owners intention to expand into the European market. | |
| 1996 | Integration of the well-known valve distributor OTTO VOGELI Ltd. in Phillipsburg, Germany in order to improve the market position of the industrial division. | |
| Start-up of the assembly plant [OSTACO s.r.o.] in Vaseline, Republic of Czech. | ||
| Foundation of INTERVAL AG in Urdorf, Switzerland to concentrate on the marketing of the industrial valves in the Swiss market. | ||
| Foundation of INTERVAL Inc. in Mobile, Alabama, USA as a sales company for the US market. | ||
| 1998 | Know-How transfer of from OSTACO AG, Switzerland to  Industrial Center, in 10th of Ramadan City, Egypt to be the sole producer of . |
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| 1998 | ISO 9001 Certificate from TUV-Management Services GmbH for the Design, Development and Production of Instead of only flanged ball valves as also produces different types of ends. |
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| 1999 | TA-Air Test (TA-Luft) Certificate from TUV-Rheinland at 100,000 Operating Cycle, for Product Safeguard against Environmental Pollution. |  |
| 1999 | Foundation of AIMAN / Alpha International Marketing Agencies Network as an importer of all kinds of industrial valves for the use of the Egyptian market. |  |
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