Who we are



The service focus of SFK - Schulz GmbH, service, manufacturing and plastics technology - is the small-and large-scale production and distribution of turned and milled parts made of steel, plastics, aluminum, and zinc, as well as the construction of devices and equipment for special purposes.

In these areas, we work very closely with operations in the Republic of Lithuania.
Here, we see ourselves as an external supplement to the German market and offer for the above mentioned areas complex, cost-effective solutions and our services.

We take care of our customers the complete manufacturing and logistics operations of selected individual parts or assemblies.


Thus we are able to realize complete solutions at a high technical level.

On our website, we provide only a small part of our extensive service offer whereas



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The company SGN-STEEL GmbH has been damaged since the year 2000 with metalworking, production of pipe flanges and sales. The aim is to produce pipe flanges of excellent quality. Some products from the product range: flat flanges, loose flanges, threaded flanges, Ansi flanges, blind flanges, assembly of intermediate piece, tube bundle walls, spiral flanges, manhole, trunk flanges, etc.
Some products from the special flanges product range. Any shape, thickness, of all types according to drawings even with different bores, threaded connections with metric, pipe or NPT thread up to DN 2000.
Version: with natural, galvanized or hot-dip galvanized surface.

Metal and steel construction, pipeline construction
Welding work,
Special construct ionenes
Components, gates, stairs,
Railings, balconies, doors

Mechanical large parts machining of machine parts with a focus on guideway grinding

SIM Gdynia was founded in 1978 and has been a family company since then. We specialise in machining, in CNC technology and in the production of the highest quality machining components for all branches of industry. Initially, our company is a good example of the fulfillment of “The American Dream” and it shows it is possible in any circumstances. Today, after over 35 years, we are a modern enterprise proud to represent the highest level of technology, service organisation and responsibility.Today SIM Gdynia means:
a team of approximately 170 employees, including 25 engineers and a Quality Department of 10,
over 50 modern CNC machines and measuring devices including brand new and fully robotised ones of the world leading brands (Makinol, Mori Seiki, Kitamura, Enshu, Okuma, Chiron, Star, Fanuc, Miyano, Doosan, Mitutoyo),machining of alloys (also stainless steel, superduplex) and plastics according to the clients` requirements, samples and drawings,
our own production of worm gear,
the CAD/CAM/CAE computer aided design and manufacturing system,
the export of almost 70% of total production to world class companies and leading corporations in Western Europe, North and South America and Far East,
active Quality Policy, ISO 9001:2008, other certificates and prizes.

Since 1959, the company SIMON is active both as a manufacturer of molds for plastic injection and as a designer of special machines.



Two basic activities:

-Moulds for plastic injection

Special-Machines

General-Mechanical (small and medium series)

Simplastic is a Portuguese thermoplastic injection company, that supplies a service going from design and development to assembly, including supply chain management. We produce semi and finished products with metallic, electric and electronic components, providing time proven integrated solutions. We have 45 years of experience producing for and working closely with clients in several sectors, such as household appliances, electronics, lighting systems, robotics, agriculture, etc.

The company "Sinecs" d.o.o. Bihać was founded in 2002. The main activity of the company is
production of metal structures and parts for the market. All constructions are made according to
previously elaborated technical documentation with the use of modern software for
construction and design.
In its plant, the company has NC and CNC machining centers, MIG/MAG devices for
welding, and band and circular saws for metal cutting.
As part of its business, the company also provides protection services for metal structures (sandblasting and
varnishing), as well as the sale of machines and equipment.

Your specialized company for steel construction, jig construction, structural engineering and Stalsonderbau

Singold Stahlbau GmbH combines the experience of a third-generation craftsman with the production and design possibilities of a modern service provider.

Thanks to the know-how of our experienced specialists and the modern operating equipment, we offer a comprehensive range of special steel work, in addition to classic steel constructions and the high-quality processing of stainless steel.

Our company relies on innovative technologies when processing its orders.
By using a KUKA welding robot, we can meet factory specifications exactly and on time. In addition, we have a HEDELIUS machining center and high-quality DEMMELER welding tables to make our components precisely tailored. A hall crane with a 10 ton lifting capacity and a BEHRINGER band saw enable us to cut and process large steel beams on an 800 m² production area.

Regular training and further education of our motivated employees, as well as certifications according to European standard, extend our fields of competence.

The family company with a lot of passion for precision, quality and customer satisfaction. Sirius Maribor d. o. o. (Limited Liability Company) was founded and registered in the District Court of Maribor on October 30 2003. When founded, Sirius Maribor employed 20 workers who produced equipment and technological functional units intended to customers in Austria, as well as in Slovenia (approximately 10 %). The number of employees has risen to 70 due to encouraging work results and increasing demand for our products.