OSOJA logo

OSOJA Engineering & Logistics

Focus on your business — we’ll handle the rest

Risk Reduction

Quality control at every stage

Time Savings

Turnkey logistics solutions

Global Compliance

Compliance with all international standards

OSOJA INZENJERING I LOGISTIKA DOO — an international provider of engineering solutions, metal products, and industrial equipment.

Core focus areas:

  • Turnkey supply of metal products (pipes, sheet steel, profiles, fittings, valves)
  • Development of technological solutions for oil & gas, chemical, and energy sectors
  • Custom logistics solutions for projects in oil & gas, chemical, and energy sectors, including remote and hard-to-reach regions
Core_focus_areas

Our mission:

to deliver competitive solutions and products that reduce clients’ operational risks through:

  • Comprehensive turnkey supply
  • Compliance with international standards
  • Flexible logistics and technical support
Our_mission
01

Specialized expertise

Focus on industries with high reliability demands: oil & gas, energy, nuclear.


02

End-to-end services

From engineering and design to equipment supply and post-sales support.


03

Flexibility & adaptability

Custom fabrication of items per client specifications (pipes, profiles, fittings, valves); working with specialty materials: stainless steel alloys, titanium, nickel alloys.


04

Global logistics

Our network of partners covers all continents and allows us to carry out projects in the most remote places in the world. Assistance with import procedures through partnership networks.

Global logistics map

Focus on industries with
high reliability requirements:

Oil & Gas

Oil & gas

Chemical

Chemical

Nuclear

Nuclear

Aerospace

Aerospace

Metallurgy

Metallurgy

Shipbuilding

Shipbuilding

Machinery

Machinery

Narrow specialization = deep expertise

Our services:

01

Comprehensive supplies of metal products (pipe products, steel sheets, profiles, fittings, flanges)

Full cycle: from 3D design to equipment installation

Coordination of documentation with technical supervisory authorities

02

Pipes and fittings for industry

Supply of steel products compliant with DIN, ISO, ASTM, ANSI, JIS

Maintenance of facilities in oil & gas, chemical, shipbuilding, and vessel refit industries

03

Industrial chemicals with guaranteed delivery timeline

Delivery of reagents and raw materials through a global partner network

All DGR classes from LiOn Batteries to industrial explosives

04

Independent quality control

Product inspection and testing — ensuring standards compliance

05

Logistics optimization

Audit of existing supply chains

Development of delivery routes using all modes of transport

Design of warehouses and distribution centers to meet your needs

06

Metal processing

Laser and plasma cutting, bending, rolling

Products

Pipes

Mainline pipes General-purpose pipes Heat-exchange pipes Casing pipes Drill pipes Furnace pipes Finned pipes Line pipes Polyethylene Pipes made of special steels and alloys Thick-walled seamless pipes Duplex and super duplex alloy pipes

Parameters:

Outer diameter (seamless and welded)

from 3 mm to 1,820 mm

Wall thickness

from 0.5 mm to 60 mm

Standards

ASTM, ASME, API, JIS, DIN, EN

Pipes 1 Pipes 2 Pipes 3

Fittings

Elbows Tees Reducers Bends Hangers Caps Forged fittings (Weldolet/Sockolet, Threads) Support structures

Parameters:

Outer diameter

from 3 mm to 1,420 mm

Wall thickness

from 1.5 mm to 40 mm

Pressure class

2000, 2500, 3000, 6000, 9000 LBS

Standards

ASTM, ASME, ANSI, MSS, JIS, BS, GOST

Fittings 1 Fittings 2

Flanges

Threaded flanges Two-piece flanges Weld neck flanges Slip-on flanges Blind flanges Lap joint flanges

Parameters:

Outer diameter

from 5 mm to 400 mm

Pressure class

150–2500 LBS

Standards

ASTM, ANSI, EN, DIN, BS, ISO, JIS, MSS, AWWA

Flanges 1 Flanges 2

Shut-off and control valves

Slide and wedge gate valves Shut-off valves Check valves Ball valves (supporting and floating) Cork valves Disc valves

Materials:

Cast iron Carbon steel Stainless steel Duplex steel Low-temperature alloy steel Bronze Special alloys

Parameters:

Outer diameter

from 20 mm to 1,400 mm

Pressure class

from 150 to 2,500 bar

Standards

ASTM, ANSI, API, DIN, BS, GOST

Valves 1 Valves 2

Rolled products

Reinforcement wire rod Wire rod Circle hexagon Hexagons Strip square Beam channel

Materials:

Alloy steel Duplex Nickel alloys Heat-resistant materials Ferritic, martensitic, and austenitic stainless steel Carbon steel

Parameters:

Bar diameter

from 5 mm to 950 mm

Strip and square cross-section

from 19 mm to 6,300 mm

Standards

ASTM, EN/DIN

Rolled 1 Rolled 2

Sheet metal

Stainless steel sheets, coils, strips Carbon steel sheets, coils Sheets made of special alloys (Incoloy, Inconel, Monel, Hastelloy) Pressure vessel plates Shipbuilding and boiler plates High-strength, low-temperature, and structural steel

Materials:

Stainless steel alloys Carbon steel Titanium Nickel alloys

Processing methods:

Hot rolling Cold drawing Normalization Annealing Tempering

Additional services:

Laser and plasma cutting Rolling Bending

Parameters:

Thickness

from 0.1 mm to 410 mm

Applications

Oil & gas, chemical, shipbuilding, energy industries

Sheet metal 1 Sheet metal 2 Sheet metal 3 Sheet metal 4

Contact Us

Address: Srpskih Sokolova BB, 74000 Doboj, Republika Srpska, Bosnia & Herzegovina

Email: office@osojaengineering.com

Phone/WhatsApp: +387 6637 7790, +387 6587 4294

© 2025 OSOJA Engineering & Logistics