About Us- gas tanks

Seamless steel, aluminium, composite, medical, industrial, and specialty gas cylinders for oxygen, nitrogen, hydrogen, CO₂, and other compressed gases, with different capacities and pressure ratings.

Compact cryogenic storage and supply systems for applications requiring on-site liquid gas storage and distribution.

Stationary cryogenic storage tanks, vertical and horizontal tanks, Dewar cylinders, and related storage solutions for liquid nitrogen, oxygen, argon, carbon dioxide, LNG, and other cryogenic gases.

Vaporizers, valves, regulators, pumps, and other components used in gas storage and supply systems.

Road transportation equipment for liquid nitrogen, oxygen, argon, carbon dioxide, LNG, and other cryogenic gases.

High-pressure gas transportation equipment for compressed gases such as hydrogen, natural gas, nitrogen, and other industrial gases.

Containerized solutions for transporting and distributing liquefied gases between different locations and markets.

DSW works with manufacturing and engineering teams in China to support gas cylinder, cryogenic tank, and related gas equipment projects. Our capabilities cover product selection, technical specification, production coordination, quality inspection, documentation, and export support.

For gas cylinders and cryogenic tanks, specifications must be matched to the gas service, working pressure, capacity, operating temperature, applicable standards, and destination market.

International gas equipment projects require specifications to match the gas, pressure, capacity, operating conditions, standards, and destination market.

DSW coordinates these requirements with the appropriate engineering and manufacturing resources.

Technical Specification Support

We help define key requirements, including gas type, capacity, pressure, temperature, connections, materials, and standards.

Manufacturing Coordination

We coordinate specifications and production requirements for standard, customized, OEM, and project-based orders.

Quality & Documentation

Inspection, testing, certification, technical documentation, packaging, and export requirements can be coordinated according to the project.

International Project Support

DSW supports communication among customers, engineers, manufacturers, inspectors, and logistics providers as required.

Safety and regulatory compliance are fundamental considerations when sourcing pressure and cryogenic equipment. Depending on the product and destination market, DSW supplies equipment manufactured according to applicable international and national standards.Depending on the specific product and application, relevant standards and requirements may include:

• ISO standards for gas cylinders and cryogenic equipment
• DOT requirements for applicable U.S. market products
• TPED requirements for applicable European transportable pressure equipment
• CE requirements where applicable
• EN standards for relevant European-market products
• GB standards for applicable products manufactured for the Chinese market
• ASME requirements for applicable pressure vessels and cryogenic tanks

Certification and inspection requirements depend on the specific product, design, service conditions, and destination market. Customers can provide their required standard or certification before quotation so that the appropriate product configuration can be evaluated.

DSW supplies customers in international markets across Asia, Europe, the Middle East, Africa, North America, South America, and other regions.
Our customers include industrial gas companies, gas distributors, equipment dealers, engineering companies, OEMs, and project contractors.
We support both standard product sourcing and project-specific requirements, depending on the customer’s technical specifications and purchasing needs.
For international orders, DSW can also coordinate product documentation, inspection, packaging, shipping arrangements, and export requirements.

Different customers require different levels of gas storage and transportation equipment. An industrial user may need a small number of high-pressure cylinders, while a gas distributor or industrial project may require cryogenic storage tanks, vaporizers, pumps, valves, and transportation equipment.

DSW therefore approaches each project according to the customer’s actual operating requirements.

Typical project information includes:

• Gas type and purity
• Required storage capacity
• Gas consumption rate
• Working and design pressure
• Operating temperature
• Application
• Required standards and certifications
• Destination market
• Transportation and installation requirements

Based on these requirements, DSW can help customers identify suitable gas cylinders, cryogenic tanks, transport equipment, and related gas handling components.