90-degree elbows are suitable for pipeline systems in industries such as petroleum, gas chemical, hydropower, construction, and boiler. The name of the flanged pipe fitting should be called a 90-degree elbow, which is a thin pipe material that is stamped into a semi-circular elbow, then the two halves are bent and welded together. If the 90-degree elbow is in operation, there may be some wear due to slight movement of the floating ring caused by the pressing of the joint surface. This can result in slow or inability to lift agricultural equipment, necessitating the replacement or repair of the floating ring. Reducing the bending forming technology involves forming large-diameter billets of equal and bent shapes, pressing the billets along the axial direction, and moving along the cavity to shape the metal.

The high head method for 90-degree elbow welding materials requires extensive large-scale equipment and has a higher interest rate. Known as alloy steel elbows. Despite its processing capability, for large flanges, due to their massive size and transportation issues, large flange sealing and fastening components are only used in aviation, oil, and petrochemical industries, and have been widely applied in large containers. However, due to various factors, the actual wall thickness of floor heating pipes is typically sufficient to meet the requirements for floor heating, and the standard stamping elbow pipe does not possess a pressure advantage.

90-degree elbows, commonly made of stainless steel, should be stored in dry, well-ventilated conditions, kept clean and tidy, and stored in the correct manner. The internal pressure of the 90-degree elbow manufacturer, under the action of teeth and polygonal cross-sections, gradually becomes circular, eventually forming a ring shell. Depending on the material, such as trapezoidal ring shells, waste material can be minimized through a single bend, creating an elbow with convex and concave features on both sides. The materials for trapezoidal shapes can be stainless steel, alloy steel, and others. During long-term storage of medium-frequency bending pipes, timely inspection is required. The processing surface should be kept clean, free of dirt, and neatly stored in a dry, well-ventilated room. Prohibition of stacking or leaving outdoors. If the bolt holes of the connecting flange are not easily found, it may be to avoid future equipment changes, etc.