Stainless steel welded ventilation pipes have the following advantages:

1. Strong corrosion resistance: It can resist the erosion of a variety of corrosive media and has a long service life in harsh environments.

2. High strength: with high structural strength, can withstand greater pressure and weight, to ensure the stability of the ventilation system.

3. Good high temperature resistance: it can work normally in a higher temperature environment, suitable for some special high temperature occasions.

4. Good health performance: smooth surface, not easy to breed bacteria and dust, easy to clean, in line with the needs of places with high health requirements.

5. Good sealing: The welding connection can effectively ensure the sealing performance of the pipeline, reduce air leakage and improve ventilation efficiency.

6. Beautiful and durable: the appearance is clean and beautiful, and durable, without frequent maintenance and replacement.

The price of stainless steel ventilation pipes will be affected by a variety of factors, including material, specifications, thickness, processing technology and so on. Here are some rough price ranges for your reference:

- Material: Different materials of stainless steel prices will vary, in general, 304 stainless steel prices will be higher than 201 stainless steel.

- Specifications: The larger the size of the ventilation pipe, the higher the price is usually.

- Thickness: The thickness of the pipe will affect its strength and durability, but also has an impact on the price.

- Processing: Complex processing processes may increase costs.

It should be noted that the above prices are for reference only, and the actual prices may vary due to market conditions, suppliers and other factors.