Dewar is designed for storage, transport and use of liquid oxygen, liquid nitrogen, liquid argon or carbon dioxide. These containers are made according to standard DOT4L, widely used local storage and supply cryogenic liquid gas.

Specification of Liquid  Oxygen Dewar Flask :

 NOTE: SEFIC can offer 175L- 495L Liquid Nitrogen Dewar as your required. More Types pls contact us by E-mail/telephone.

Pictures of Stainless Steel Liquid Oxygen Dewar Flask :

  Liquid Oxygen Dewar Flask

High Quality 210L  Liquid Oxygen Dewar Flask

More Detail Pictures of Stainless Steel Liquid Oxygen Dewar Flask :

The high quality Pressure Gauge for  Liquid Oxygen Dewar Flask

The high quality Valves for  Liquid Oxygen Dewar Flask

Good Packaging of Stainless Steel Liquid Oxygen Dewar Flask :

Located in Shanghai, SEFIC is a professional supplier of gas and gas equipment. Founded in the 90s, the company has already accumulated enough experience and became one of the best suppliers of all kinds of gas and gas equipment. Besides, it is one of the earliest in the country to gain the License of Pressure Vessel Type A2 and C2, ISO9001 and ISO14000 Certification, Private Hi-Tech Enterprise, Hi-Tech Enterprise, and Special Equipment Manufacture Permission. We almost can supply all kinds of gas cylinders with TUV, TPED, CE and DOT certification.

SEFIC certificate of the gas cylinder

We have more than 30 years experience in gas equipment industry and have gained a sound reputation all over the world. Our products have served customer satisfaction from more than 50 countries all over the world. So far, our business has expanded globally to countries and regions such as the US, EU (mainly Germany, Portugal, Romania and Bulgaria), South America (mainly Chile, Peru and Bolivia), and Africa (mainly Angola and South Africa).

SEFIC gas cylinders have served customer satisfaction from more than 50 countries

We also put the common steel cylinder samples in our headquarters office for the convenience of customers to view samples and know more product information of SEFIC. If you need the relevant product information of steel cylinders or aluminum cylinders, catalogues and samples are provided; Any call or emails are welcomed, or you can also visit SEFIC official website: or leave messages on the product page, SEFIC will be happy to serve you!

SEFIC gas cylinder sample display area

SEFIC has rich experience in business operating and management, and own capability of processing various gas cylinders.SEFIC have adopted certifications of ISO by International Standardization Organization, DOT of America, TC of Canada, TUV of Germany, KGS of Korea and some other certifications. Adhering to the Corporate Philosophy of “ regard quality as credit, credit as brand and brand as life”, and “Repeat simple things, do repeated things with heart, quality goods comes out of concentration”. With safe and dependable products and quality service, SEFIC has established good corporate image and won recognition and praise of the industry.

General situation of SEFIC gas cylinder production

In the year 2005, we strove to realize transformation and global market expansion by growing from a gas equipment manufacturer into a gas project solution supplier and set up overseas marketing teams in our headquarters.By providing gas equipment and technology support to several establishments of new ,plant, we thrived the growth of the company.

SEFIC sales team for foreigners

With high-quality products, competitive prices, fast delivery time and superior service, SEFIC won the customer's trust and praise. Since 2005, SEFIC has established trade relations with more than thirty thousand customers in more than 50 countries and regions. Many of our VIP clients have visited SEFIC repeatedly and discussed the regional agency service with us. Currently, SEFIC has established product agency services with clients in Italy, Saudi Arabia, South Africa, Uganda, Cambodia, Kuwait, Iran, Malaysia and other countries and regions.Cooperation with SEFIC, we have the following advantages: