(1) Carbon steel elbow with large diameter and relatively thin wall thickness can be used without tube blank as raw material, which can save the cost of tube making equipment and mould.
(2) The blank is flat or developable surface, so the feeding is simple, the precision is easy, and the assembly and welding are convenient.
(3) Due to the above two reasons, the manufacturing cycle can be shortened and the production cost can be reduced. It is especially suitable for processing large carbon steel elbow on site because it does not need any equipment.
(4) Carbon steel elbow is suitable for petroleum, gas, chemical, hydropower, construction and boiler industries and other pipeline series.
