Frequently Asked Questions

What gases do you supply?

We supply three primary industrial gases: Oxygen (O2) at 99.5-99.9% purity, Nitrogen (N2) at 99.5-99.99% purity, and Argon (Ar) at 99.99% purity. All gases are supplied in certified high-pressure cylinders.

Do you offer same-day delivery?

Yes! We provide same-day delivery in Ho Chi Minh City and Long An Province. Contact us before 2 PM for same-day delivery. For areas outside immediate coverage, we offer next-day delivery.

What cylinder sizes are available?

We stock cylinders ranging from 10L to 50L. Common sizes: 10L, 20L, 25L, 40L, and 50L. Special sizes available upon request with minimum order quantities.

Do you offer cylinder rental programs?

Yes, we offer flexible cylinder rental programs. You can rent cylinders on a monthly basis with automatic delivery scheduling. Monthly rental rates include delivery and maintenance.

Are your gases suitable for medical use?

Our oxygen meets medical-grade purity standards for hospital and clinical use. Contact us for pricing and certification documents.

What industries do you serve?

We serve: metal fabrication & welding, food packaging, electronics manufacturing, aquaculture & fish farming, medical facilities, and chemical industries.

How do I place an order?

Contact us via: Phone: (+84) 865 331 934, Email: philip.thai@vanhoan.com, or use our contact form. We'll confirm availability and arrange delivery within hours.

What payment methods do you accept?

We accept bank transfers, cash payments, and business credit terms for established customers. Payment in advance is required for first-time orders.

Do you provide safety consultation?

Yes, our team provides professional consultation on proper gas handling, storage, and safety practices at no charge.

What's your customer support availability?

Monday to Saturday, 8:00 AM - 5:00 PM. Emergency orders available on WhatsApp/Viber/Zalo 24/7 with premium rates.

Do you offer price discounts for bulk orders?

Yes! Volume discounts available for orders of 5+ cylinders. Contact us for custom pricing on long-term supply contracts.

Are your cylinders certified?

All cylinders meet international standards (ISO 4706, ISO 25362) and undergo regular pressure testing and maintenance.