The beginning of industrial production in the existing building of TRIANGL® s.r.o. dates back to 1885, when a part of a farmstead was converted into factory buildings and the company Jung and Lindig was established on 1 January 1885.
In 1912, a merger with Bleiindustrie A.G. took place and the plant became a prominent distributor of lead products in the territory of Austria-Hungary. Production of aluminium foil was launched in 1932-1935.
After 1945, the plant was first included in the national enterprise Teplická strojírna and later, in 1953, into a sector of the national enterprise Chemokov. From then on, there was a gradual development in machinery production.
When the Chemokov national enterprise was dissolved, the plant joined the "Spolek pro chemickou a hutní výrobu" corporation in Ústí nad Labem and was responsible for a significant part of engineering production of the corporation. The production was extended with the die casting of lead, production of pressure equipment, processing of high-grade steels, but above all the plant became a major manufacturer of titanium equipment.
During the privatisation, TRIANGL® s.r.o. became the new owner of the plant on 1 June 1993. The company largely preserved the production programme which not only focused on the chemical and paper processing industries but also on other areas.
The experience gained in production, particularly the production of pressure vessels from high-grade steels and titanium equipment, guarantee product quality and customer satisfaction.