Mission
To deliver safe, reliable, and innovative industrial gas solutions while becoming the preferred partner for businesses across Angola and Southern Africa.
20+ Years of Excellence
Who are we
About Us
GAB Comercio e Industria LDA is a trusted Angolan company specializing in the production and supply of industrial and medical gases. We deliver reliable gas solutions, equipment, and related products that support the oil & gas, construction, manufacturing, and healthcare industries, with an unwavering commitment to quality, safety, and customer satisfaction.
Core Capabilities
How We Deliver Value
Products
We provide high-quality industrial and medical gas solutions together with essential equipment and accessories to support safe and reliable operations across oil & gas, construction, manufacturing, and healthcare sectors.
Services
We provide professional gas filling, cylinder hydrotesting, and safety inspection services carried out by experienced specialists. Our operations prioritize reliability, strict compliance, and environmental responsibility while maintaining the highest industry standards. Our gases are supplied with the required certifications to ensure quality and product standards.
Local Content
We are committed to supporting Angola's growth through ethical business practices and a highly skilled local workforce. By investing in Angolan talent and maintaining full regulatory compliance, we deliver trusted solutions while contributing to the country's industrial development.
Committed to Excellence
Our Principles
Every solution we deliver is guided by a clear mission, an ambitious vision, and a strong set of values. Together, they guide our decisions, strengthen our partnerships and define our commitment to safety, quality and innovation across every industry we serve in Angola and beyond.
Vision
To create lasting value for our customers, partners, employees, and stakeholders through reliable products, technical expertise, and exceptional service.
Values
We operate with integrity, embrace teamwork, put our customers first, and remain committed to accountability, health, safety, and environmental responsibility.
Solutions for Every Industry
Industrial Gases
Explore our portfolio of industrial gases, their properties, applications, technical specifications, and performance characteristics. Discover how each solution supports productivity, safety, quality, and operational efficiency across a wide range of industries.
Industrial • Medical • Energy
Oxygen (O2)
Healthcare
Oil & Gas
Chemicals
Welding & Cutting
Metal Processing
Overview
Oxygen (O2) is a critical industrial and medical gas that supports a wide range of applications across healthcare, manufacturing, energy, and process industries. By enriching combustion processes, oxygen helps increase operational efficiency, reduce fuel consumption, and lower carbon dioxide emissions, making it an essential component in modern chemical, oil and gas, and industrial operations.
In metal processing, oxygen plays a vital role in smelting, cutting, welding, and other fabrication processes where high temperatures and precision are required. In the healthcare sector, medical-grade oxygen is indispensable for patient care, respiratory therapies, emergency response, surgery, and critical care applications.
Our production facility delivers oxygen with exceptional purity levels of up to 99.9995%, available in both gaseous and liquid forms. With a production capacity of up to 90,000 liters per month and high-pressure filling capabilities, we provide a reliable supply that meets the demanding requirements of industrial and medical customers.
Generator Flow Chart
Production Process
Oxygen is produced from atmospheric air through a cryogenic air separation process. Air is compressed, purified to remove moisture and carbon dioxide, and cooled to extremely low temperatures until it liquefies. The liquefied air is then separated by fractional distillation inside a distillation column, where oxygen and nitrogen are isolated based on their different boiling points.
The oxygen-rich fraction is collected and stored as Liquid Oxygen (LOX) in vacuum-insulated cryogenic tanks. Liquid oxygen can either be supplied directly for cryogenic applications or vaporized and compressed for filling high-pressure oxygen cylinders.
Available as compressed oxygen gas and liquid oxygen (LOX).
Industrial • Food • Cryogenic
Nitrogen (N2)
Oil & Gas
Food Processing
Inerting & Purging
Cryogenic Cooling
Biological Storage
Overview
Nitrogen (N2) is one of the most widely used industrial gases, valued for its inert properties and versatility across multiple industries. It is commonly used for pressurization, purging, and inerting applications in the petrochemical and oil & gas sectors, helping protect equipment, maintain product quality, and enhance operational safety.
In the food and beverage industry, nitrogen is used for food processing, packaging, and preservation to help extend shelf life and maintain product freshness. Liquid nitrogen is also essential for rapid cooling, cryogenic freezing, biological sample storage, cryosurgery, and specialized manufacturing processes such as the cryogenic grinding of plastics and rubber.
Produced with a purity of up to 99.998% and available in both gaseous and liquid forms, our nitrogen supply delivers dependable performance for industrial, food-grade, and cryogenic applications. With a production capacity of up to 90,000 liters per month and high-pressure filling capabilities, we ensure a consistent and reliable supply for demanding operations.
Generator Flow Chart
Production Process
Nitrogen is produced from atmospheric air through a cryogenic air separation process. Air is compressed, purified to remove moisture and carbon dioxide, and cooled until it becomes liquid. The liquid air is then separated by fractional distillation, allowing high-purity nitrogen to be separated from oxygen and other atmospheric components.
The nitrogen-rich fraction is collected and stored as Liquid Nitrogen (LIN) in vacuum-insulated cryogenic tanks. Liquid nitrogen may be supplied directly or vaporized and filled into high-pressure cylinders as gaseous nitrogen.
Available as compressed nitrogen gas and liquid nitrogen (LIN).
Industrial • Food • Refrigeration
Carbon Dioxide (CO2)
Food Processing
Food Packaging
Refrigerated Transport
Temperature Control
Overview
Carbon Dioxide (CO2) is a versatile gas widely used across the food and industrial sectors. In its solid form, commonly known as dry ice, CO2 reaches temperatures of -78.5°C, providing an effective, clean, and efficient solution for cooling and preservation applications.
CO2 plays a critical role in food production and packaging by helping maintain product quality, freshness, and safety throughout processing operations. It is also extensively used for refrigeration during transportation and distribution, ensuring temperature-sensitive products remain within required conditions across the supply chain.
Available in forms suited to a variety of applications, carbon dioxide provides reliable temperature control and cooling performance for industries where product integrity and cold-chain management are essential.
Specifications
| Grade | Purity (Minimum) |
Size | Contents | Pressure | Weight | |||
|---|---|---|---|---|---|---|---|---|
| lbs. | kg | psig | bar | lbs. | kg | |||
ALPHAGAZ SFE
|
99.997% | 30AL | 39 | 18 | 1515 | 105 | 85 | 38 |
ALPHAGAZ SFC
|
99.995% | 44 30AL |
50 35 |
23 16 |
830 830 |
57 57 |
183 85 |
83 38 |
ALPHAGAZ 1
|
99.99% | 44 LB |
50 0.5 |
23 0.2 |
830 830 |
57 57 |
183 4 |
83 2 |
Generator Flow Chart
Welding • Laboratories • Packaging
Argon (Ar)
Welding
Laboratories
Food Packaging
Lighting
Inert Atmospheres
Overview
Argon (Ar) is a high-purity inert gas widely used in applications where protection from atmospheric contamination is essential. As a noble gas with excellent stability, argon provides a reliable shielding environment for precision industrial processes.
In welding applications, argon is commonly used as a shielding gas to protect weld areas from oxidation and impurities, ensuring higher-quality results. It is also used in laboratories requiring controlled inert environments, lighting applications, and food packaging processes where oxygen displacement helps preserve product quality and shelf life.
Available at purities up to 99.999%, our argon supply meets the demanding requirements of industrial, technical, and precision applications. Stored in high-pressure cylinders and handled according to safety standards, it provides a dependable solution for specialized operations.
Cryogenics • Welding • Laboratories
Helium (He)
Laboratories
Cryogenics
Leak Detection
Electronics
Welding
Overview
Helium (He) is an inert, non-flammable gas widely used in industrial, scientific, and high-technology applications. Thanks to its exceptional stability and extremely low boiling point, helium is the preferred choice for processes requiring precision, safety, and reliable performance.
In industrial environments, helium is commonly used as a shielding gas for specialized welding, leak detection in pipelines and pressure systems, and the manufacturing of electronic components. It is also essential in cryogenic applications, laboratory research, and cooling systems where ultra-low temperatures are required.
Available in high-pressure cylinders, our helium supply delivers consistent purity and dependable performance for industrial, scientific, and technical applications.
Welding • Shielding • Fabrication
ARCO Gas (15 • 20 • 25)
MIG Welding
Metal Fabrication
Steel Processing
Manufacturing
Industrial Workshops
Overview
ARCO is a premium shielding gas mixture of Argon and Carbon Dioxide, specially formulated for MIG/MAG welding applications. Available in ARCO 15, ARCO 20, and ARCO 25, each blend is designed to provide the ideal balance between arc stability, penetration, weld appearance, and productivity for different welding requirements.
These gas mixtures are widely used in metal fabrication, structural steel production, manufacturing, automotive repair, and general industrial welding. By protecting the molten weld pool from atmospheric contamination, ARCO gases help produce cleaner welds, reduce spatter, and improve overall welding efficiency.
Whether for light fabrication or heavy industrial production, ARCO shielding gases provide reliable performance and consistent welding quality across a wide range of applications.
Specifications
| Product | Argon (Ar) | Carbon Dioxide (CO2) | Typical Application |
|---|---|---|---|
| ARCO 15 | 85% | 15% | Thin to medium steel, cleaner welds, reduced spatter, excellent weld appearance |
| ARCO 20 | 80% | 20% | General-purpose MIG welding, fabrication, structural steel, balanced performance |
| ARCO 25 | 75% | 25% | Heavy steel fabrication, deeper penetration, high-productivity industrial welding |
Welding • Cutting • Fabrication
Acetylene (C2H2)
Welding
Metal Cutting
Metal Fabrication
Industrial Manufacturing
Overview
Acetylene (C2H2) is a high-performance fuel gas widely used in metal fabrication and industrial manufacturing processes. Known for its exceptionally high flame temperature when combined with oxygen, acetylene is the preferred fuel gas for welding, cutting, brazing, and other thermal processing applications that require precision and efficiency.
The gas is produced through the chemical reaction of water and calcium carbide, a process that generates acetylene suitable for industrial use. To maintain quality and performance, calcium carbide is stored in airtight containers to protect it from atmospheric moisture and prevent deterioration.
Acetylene remains an essential gas for fabrication workshops, construction projects, maintenance operations, and manufacturing facilities that depend on reliable and efficient metalworking solutions.
Specifications
| Grade | Purity (Minimum) |
Size | Contents | Pressure | Weight | |||
|---|---|---|---|---|---|---|---|---|
| CF | m3 | psig | bar | lbs. | kg | |||
ALPHAGAZ 1
|
99.6% | 70 | 330 | 9 | 250 | 17 | 227 | 103 |
Electronic Grade 2
|
99.6% | 70 | 330 | 9 | 250 | 17 | 227 | 103 |
Electronic Grade 1
|
99.6% | 70 | 330 | 9 | 250 | 17 | 227 | 103 |
Generator Flow Chart
Acetylene • Welding • Manufacturing
Calcium Carbide (CaC2)
Acetylene Production
Welding
Metal Cutting
Chemical Industry
Manufacturing
Overview
Calcium Carbide (CaC2) is an essential industrial material primarily used for the production of acetylene gas through its reaction with water. This process generates high-quality acetylene, making calcium carbide a key raw material for welding, cutting, and metal fabrication applications.
Beyond acetylene generation, calcium carbide is also used in various chemical manufacturing processes and specialized industrial applications where reliable gas production is required. To preserve its quality and effectiveness, calcium carbide must be stored in airtight containers and protected from moisture, preventing premature reactions with atmospheric humidity.
Our calcium carbide products provide a dependable solution for industries requiring consistent acetylene generation and reliable performance in fabrication and manufacturing processes.
Chemical • Treatment • Protection
Monoethanolamine (MEA)
Detergents
Personal Care
Textile Treatment
Oil & Gas
Corrosion Prevention
Overview
Monoethanolamine (MEA, C2H7NO) is a versatile chemical compound used across a wide range of industrial and specialty applications. It is an essential ingredient in detergent formulations, personal care products, textile finishing processes, and wood treatment solutions, supporting performance, stability, and product quality.
In the oil and gas industry, MEA is used in specialized applications including corrosion prevention and chemical treatment processes. It also plays an important role in metalworking products, where it helps improve protection and operational efficiency.
With its broad chemical compatibility and functional properties, Monoethanolamine provides reliable performance for manufacturers and industries requiring effective treatment, protection, and formulation solutions.
Gas Handling Solutions
Industrial Equipment
GAB supplies a comprehensive range of high-quality gas cylinders, cylinder racks, and essential accessories for industrial, medical, and specialty gas applications. Designed for safety, reliability, and ease of use, our solutions are backed by expert guidance to help you choose the right equipment for your operational needs.
Gas Cylinders
Reliable gas cylinders designed for safe storage and transportation across industrial, medical, and commercial applications.
- Multiple sizes & gas types available
- Industrial-grade construction
- Safe handling design
- Hydrotested for safety & reliability
Cylinder Racks
Heavy-duty cylinder racks engineered for secure storage, organized handling, and efficient transportation of multiple gas cylinders.
- Multi-cylinder storage
- Robust steel construction
- Secure cylinder support
- Easy handling and transport
Gas Accessories
A complete range of accessories designed to ensure safe, efficient, and reliable gas system operation.
- Regulators & hoses
- Valves & safety valves
- Welding & cutting torches
- Cutting nozzles
Trusted Partnerships
Our Clients
For more than 20 years, GAB Comércio e Indústria Lda has earned the trust of businesses across Angola and abroad by delivering reliable industrial gases, quality equipment, and dependable service. We are proud to build long-term partnerships built on safety, consistency, and customer satisfaction.
Resources
Company Brochure
Discover GAB through our company brochure, showcasing our industrial gas solutions, products, services, industries we serve, certifications, company strengths, and contact information in one comprehensive guide.