The second type of LSAW pipe is JCO, which stands for J-C-O. JCO pipes are made by forming a steel plate into a J shape, then welding two pieces of steel together to form a C shape, and finally welding the C shape to form an O shape. JCO pipes are characterized by high circumferential weld strength, high impact resistance, and excellent weldability.

The third type of LSAW pipes is RBE, which stands for Roll-Bended and Expanded. RBE pipes are produced by rolling a steel plate into a cylindrical shape and then expanding it to the required diameter. RBE pipes are characterized by their smooth surface finish, high dimensional accuracy, and excellent weldability.

LSAW pipes are classified into UOE, JCO, and RBE categories based on their production process. Each category has its unique characteristics, and the selection of the appropriate type largely depends on the specific application requirements. It is essential to consider all factors carefully to ensure that the LSAW pipes meet the desired specifications and perform optimally in their intended application.