1. How to control pipe length?
Common lengths:
6m, 12m (fixed length)
Random lengthLength is controlled by cutting machines.
2. Can welded pipes be coated?
Yes. Common coatings:
Galvanizing
PE/PP coating
Epoxy coating
Anti-corrosion paint
3. What is 3PE anti-corrosion?
3PE = three-layer polyethylene coating. Used for buried oil and gas pipelines to resist corrosion.
4. What is the difference between welded pipe and seamless pipe in price?
Welded pipe is generally 10%–30% cheaper due to lower production cost.
5. What is the raw material of welded pipe?
Hot-rolled or cold-rolled steel strip/coil or steel plate.





