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Medical Oxygen Cylinder
1.Seflc specialized in Seamless Aluminum Cylinders design and manufacture for many years,and get a good reputation home and abroad with the backing of professional design and management team.
2. cylinders are made from superior Aluminum Alloy 6061 so that features high strength(No splashing fragment in explosion), lightweight (40% lighter than steel cylinders) and corrosion resistence,etc.
3. cyinders interior and exterior is treated by passivation which can make sure the gases clean ,odourless and anticorrosive.
4.Seflc production and management is carried out by ISO9000 Quality Management System strictly and keep a good quality and safety is 's key point.
5.There are various kinds of cylinders for your choice and also can design and munufacture any new type cylinders according to customer's requirement.
Cylinder Code | Specifications | Volume (L) | Outside Diameter (mm) | Length (mm) | Wall Thickness (mm) | weight (kg) | Service Pressure (bar) |
| 1 | LWH82-0.7-15 | 0.7 | 82 | 235 | 4.2 | 0.9 | 150 |
| 2 | LWH89-0.5-15 | 0.5 | 89 | 167 | 4.5 | 0.8 | 150 |
| 3 | LWH89-0.7-15 | 0.7 | 89 | 207 | 4.5 | 1.0 | 150 |
| 4 | LWH89-1.0-15 | 1.0 | 89 | 269 | 4.5 | 1.2 | 150 |
| 5 | LWH108-0.7-15 | 0.7 | 108 | 169 | 5.5 | 1.1 | 150 |
| 6 | LWH108-1.0-15 | 1.0 | 108 | 210 | 5.5 | 1.3 | 150 |
| 7 | LWH108-2.0-15 | 2.0 | 108 | 346 | 5.5 | 2.1 | 150 |
| 8 | LWS140-4.0-15 | 4.0 | 140 | 460 | 7.1 | 3.7 | 150 |
| 9 | LWH140-4.0-15 | 4.0 | 140 | 419 | 7.1 | 4.2 | 150 |
| 10 | LWH140-5.0-15 | 5.0 | 140 | 500 | 7.1 | 4.9 | 150 |
| 11 | LWH140-6.0-15 | 6.0 | 140 | 580 | 7.1 | 5.6 | 150 |
| 12 | LWH140-7.0-15 | 7.0 | 140 | 662 | 7.1 | 6.3 | 150 |
| 13 | LWH140-8.0-15 | 8.0 | 140 | 741 | 7.1 | 7.2 | 150 |
| 14 | LWH140-10-15 | 10.0 | 140 | 903 | 7.1 | 8.5 | 150 |
| 15 | LWH159-10-15 | 10.0 | 159 | 730 | 8.0 | 8.8 | 150 |
| 16 | LWH180-10-15 | 10.0 | 180 | 605 | 9.1 | 10.1 | 150 |











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Located in Shanghai, SEFIC is a professional manufacturer of gas equipment, such as storage tanks, vaporizers, gas cylinders and gas filling station. In addition, we also produce all kinds of equipment parts, such as valve, tulip cap and steel soft pipe. We have over 10-years experience in gas industry and has a good reputation in this field. Our products have won praise from customers all over the world. And our products habe been exported to U.S., Euro countries, such as Germany, Portugal,Rominia and Bulgaria, South America coutries, such as Chile, Peru and Bolivia, Africa countries, such as Angola and South Africa.
Quality and Safety:
We have implemented a strict and complete quality control system, which ensures that each product can meet the quality requirement of customers. In addition, all of our products have been strictly inspected before shipment. Our products have attained the CE/DOTTPED certification.
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