Frequently Asked Questions

We are a full-range industrial gas supplier with five product lines, all available for export:

Category	Representative Products	Typical International Applications
Industrial Gases	Oxygen, Nitrogen, Argon, CO₂, Acetylene	Steelmaking, chemical feedstock, metal fabrication
High-Purity Gases	5N/6N/7N N₂, Ar, He, H₂	Semiconductor fabs, lab carrier gases, precision instruments
Specialty Gases	Silane, Phosphine, HCl, Chlorine	Electronic etching, fiber optics, pharmaceutical synthesis
Rare Gases	Xenon, Krypton, Neon, Helium	Satellite electric propulsion, excimer lasers, medical anesthesia
Calibration Standard Gases	Binary / multi-component mixtures	Environmental monitoring, instrument calibration, petrochemical analysis

All exported gases are handled in strict compliance with international dangerous goods transport regulations, with corresponding UN numbers and DG packaging certifications.

We are a gas supplier driven by a dual model of manufacturing and supply chain integration.

On the manufacturing side, we own physical production facilities and cylinder treatment workshops. Core products such as rare gases, certain high-purity gases, and calibration standard gases are produced and quality-controlled in-house.

On the supply chain side, leveraging over 15 years of deep industry presence in China, we have built a nationwide network of premium upstream partners. For gas categories we do not produce directly, we source from China’s best manufacturers through long-term, stable strategic relationships.

Three tangible benefits for you:

• A more complete product range — One-stop source for all gas categories without managing multiple suppliers.
• More competitive pricing — 15 years of connections and purchasing volume secure source pricing well below market average.
• Uncompromised quality control — Every batch passes our unified QC system, with COA provided.

We are certified under ISO Quality Management System, and our processes meet international standards. Every export shipment includes:

• Certificate of Analysis (COA)
• Safety Data Sheet (SDS)
• Dangerous Goods Packaging Certificate
• Cylinder Periodic Inspection Report
• Certificate of Origin (upon request)

Our Hong Kong company can also assist with special trade documents to facilitate smooth customs clearance in your country.

With over 10 years of international DG transport experience, we are a professional DG forwarder operating compliantly across:

Transport Mode	Applicable Scenarios	Operating Standard
FCL Ocean Freight	Bulk industrial gases, cylinder packs	IMDG Code, global routes
LCL Ocean Freight	Small/medium sample orders	Compliant DG consolidation
Air Freight	Urgent orders, high-value rare gases	IATA DGR, authorized acceptance points
International Road Freight	Overland to neighboring countries	ADR and regional DG regulations

We manage the complete documentation chain:

• DG Classification Report
• Packaging Certification (Dangerous Goods Packaging Certificate)
• Chinese/English SDS, GHS labels
• Export Commodity Inspection Certificate, Export License (if required)
• Region-specific documents (ADR for Europe, DOT for USA, etc.)

You only need to provide your requirements and destination; our team ensures first-submission customs clearance.

• Europe: REACH compliance, CLP classification, ADR
• USA: DOT cylinder certification, TSCA
• Southeast Asia / Middle East: Embassy legalization, specific testing reports
• Africa: Emphasis on Certificate of Origin

Our Hong Kong company monitors regulatory changes and proactively matches documentation to your destination, minimizing risks.

Order Type	Reference Lead Time
Standard gases — ex-stock export	7–15 working days
Custom mixtures / rare gases	15–25 working days
Urgent orders	Expedited feasibility assessed individually

Reliability comes from stable DG container space agreements, high documentation accuracy, and proactive route planning.

Water Capacity	Scenario	International Standard Reference
2L / 4L / 8L	Lab, instrument supply	DOT/TPED/AS available on request
40L / 47L / 50L	Industrial routine supply	ISO standard; DOT or Chinese approved cylinders
Cylinder Packs / Tube Trailers	High-flow continuous	Custom-produced, seaworthy securing

High-purity cylinders undergo: internal polishing, acid pickling, passivation, high-temperature vacuum evacuation, and inert gas backfill sealing. This ensures purity stability over weeks-long voyages. Industrial cylinders follow standard cleaning and drying.

We support all major standards:

Connection	Common Regions
CGA	North America, parts of Middle East
DIN	Europe, parts of Southeast Asia
JIS	Japan
BS	UK, Commonwealth
GB	Available with adapters

Inform us of your equipment standard, and we’ll fit the correct valve or provide an adapter.

• Rotation Program: For regular buyers, empties returned with backload containers.
• Outright Purchase: Buy cylinders outright and manage locally; we ensure sufficient inspection validity on export.

Absolutely. We accept custom mixtures (with COA per cylinder), custom filling pressures within safe limits, special valve/cylinder combos, and label/packaging customization including neutral or private-label branding.

Just provide: gas name & purity, quantity (annual or single), destination country/port, and equipment connection standard (if known). We will reply with specs, configuration, a full quote (incl. freight), and estimated delivery.

We support FOB, CIF, CFR and other terms. Payment via T/T, Sight/Usance L/C, in USD, EUR, RMB. Specifics are agreed upon during order confirmation.

Verify against the COA immediately. If a discrepancy exists, photograph and seal samples, and notify us within 5 working days. Confirmed issues will be resolved with supplementary delivery, exchange, or refund. Strict pre-shipment inspections make this extremely rare.

We export cylinders with ample remaining inspection validity. For outright purchases, use a local authorized inspection body for re-testing. For rotation customers, we manage the return and re-certification cycle.