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In 1999, LIGMA developed a unique method of producing expansion joints for the use in building industry, which by its nature meets the required parameters, and brings missing constructional design of these elements to the market.

It is about creation of flat metal strips or profiles connected by EPDM rubber using vulcanization technology while heated. That joint is highly mechanically resistant, waterproof and water-tight.

It comes in many designs of various metallic materials in different sizes according to customer requirements.