Steel pipes, no matter seamless or welded one, like erw steel pipe, are made by two different processes. It would involve four main steps for the perfect and high quality steel pipe. First of all, choosing your end of pipes would be necessary. For the ends of pipes, there are 3 standard versions available, they are plain ends (pe); threaded ends (te); beveled ends (be). Secondly, we should focus on length of pipes. Piping lengths from the factory are not exactly cut to length but are normally delivered as: single random length has a length of around 5-7 meter; double random length has a length of around 11-13 meter; shorter and longer lengths are available. However, for a calculation, it is wise to use this standard lengths; and other sizes are probably more expensive. In addition, packing would be another topic. Packed in wooden crates, wrapped in plastic, and suitably protected for sea-worthly delivery or as requested. Last, we should consider the delivery. Pipes are supplied in bundles or round bundles tied with steel strip. Of course, this would finally decided by customers.