LL-footed finned tube

This fin type is produced using a manufacturing method similar to that used for the L-type fin, but with an enhanced design of the fin foot. After the fin strip is wound onto the base tube, the foot of the fin is extended and overlapped in such a way that it completely wraps around and encloses the outer surface of the tube.

By covering the tube more fully, the overlapped fin foot creates an additional protective barrier between the base tube and the surrounding environment. This design significantly improves the resistance of the tube to atmospheric corrosion, making it particularly suitable for applications where environmental protection is important.

Because of its improved corrosion resistance and relatively lower cost, this fin type is frequently selected as a practical alternative to the more expensive extruded fin tubes in moderately corrosive environments.

The maximum recommended operating temperature for this fin type is 180°C.

FAQ：

1. Are you manufacturer or trader?

We are titanium tube manufacturer producing from melting titanium sponge, extruding hollow billet, rolling to finished tubes and destructive test mechanical test, chemical analysis, non-destructive tests like Ultrasonic test, Eddy current test, Pneumatic test and hydrostatic test are available in house.

Beside titanium tube production line, we also have finning lines. Our factory is still expanding and will invest more on finning facilities.

2. How many workers are there in your factory?

Till 2026, we have 210 staffs.

3. How fast can you deliver the materials?

It depends on the size and quantity, the standard time is 45 days.

4. What is the payment term you can offer?

Standard term is 30% T/T in advance, balance before shipment. L/C is also acceptable. It can be discussed based on different project.

5. Can you provide third party inspection service?

Yes, we can arrange BV/TUV/SGS/LR etc inspection. EN10204 3.2 certificate can be provided.

6. What is your annum turnover?

For 2025, we have had 100 million US dollars turnover for our whole group including factory and the export company.

7. What is the percentage of your export and domestic market share?

Approximately 30% of orders are for export and 70% are for domestic market. However we are aiming to increase more investment on export and hopefully the percentage can be 50-50 in the near future.

8. What country are your clients from?

We are working with overseas clients from Europe like Netherland, France, Italy, Spain etc, USA, Korea, Japan, Indonesia, Vietnam, Singapore, Chile, Argentina, Brasil, Russia, Belarus, Uzbekstan. Basically we work with clients from all over the world. We welcome every client to approach us for inquiry, and we will be ready to serve our clients. We also welcome our clients to visit our factory for onsite audit.