Metal Processing, Welding, Surfaced Welding, Piling, Engineering, Consulting, Construction and Technological Development



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About Us

Colorita 51 Ltd. was founded in 1991 by the prominent experts of the former Welding Institute - Sofia, and Institute of Metal Ceramics - Sofia.
In it's ten years existence, Colorita 51 Ltd. has achieved market recognition for up-to-date high technology equipment, investment strategy, personnel policies, exceptional product quality, and reliability.
Our major customers are Sofia City Transport (Metropolitan Company of Urban Transport S.A.), Railway Transport Company subsidiary departments, as well as various other companies and businesses.
Presently we offer more than 150 products and services.


Colorita 51 Ltd. is specialized in the production and maintenance, including hot and cold metal treatment. We offer a complete range of services, from the design and analysis to the implementation of the new technologies, products, or equipment.


The company has twenty five employees presently. All of our employees are highly qualified  and experienced professionals, lead by the team of four Engineers who are hot and cold metal treatment experts.
The company is sharing capital, premises, resources, and production line with  PIL 2000 Ltd. and LYUAL 2000 Ltd. sister companies.


Dipl. Eng. Plamen Tzvetanov - welding technologies, in particular plasma and gas-welding coating expert.

Dipl. Eng. Lyuben Ivanov - powder metallurgy and metal ceramics expert.
Eng. Alexandar Ivanov - welding technologies and manufacturing processes automation expert.


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