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DYWIDAG Systems International
DYWIDAG-Systems International (DSI) is a globally operating technology group that has its focus on the construction and underground markets. In 2010, the company had 2,118 employees. DSI's activities in Construction and Underground are currently focused on the regions EMEA (Europe, Middle East, Africa), North America, South America and Asia/Pacific.
==History==
Dyckerhoff & Widmann AG (Dywidag) was founded in 1865 as a bridge construction company. They developed a threaded rebar system as a way to easily post-tension components in the construction of segmental bridges. This method was a great success so they continued using the technique and began selling the threadbar to other construction companies. The sales of the bar and accessories eventually trumped the revenue from the bridge construction side of the business so the company transitioned to the manufacturing and supplying of products for construction rather than being involved in bridge construction itself. DSI was founded in 1979 as a Dyckerhoff & Widmann AG (DYWIDAG) subsidiary to market licences for DYWIDAG-products and systems around the world. At the beginning, DSI's focus was on Construction, with a principal market focus being post-tensioning concrete and geotechnics. In 2000, DSI began to establish a second division in the underground sector. The main focus of this division is the development, production and supply of products and systems for mining and tunneling.
抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』
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