These products are designed for aerospace applications, requiring every parameter to undergo full inspection strictly according to drawing specifications. Operating in unique environments, they must adapt to extreme temperature differences. Products must undergo rigorous safety performance testing to ensure that each batch meets destructive testing requirements, thereby fulfilling the allowed safety values.

Materials & heat treatment: Typically utilize special materials such as 9310 and 18Cr2Ni4WA. Various heat treatment methods are employed, including carburizing and quenching, carbonitriding, or nitriding.

These products are generally used in UAV (Unmanned Aerial Vehicle) rotor systems, often referred to as rotor shafts. Given their unique operating environment, the product's weight needs to be minimized as much as possible while meeting performance requirements. This reduction in weight contributes to a lower overall weight for the UAV system, allowing a lighter drone to carry more payload under the same load capacity. Therefore, the design of these products embodies this philosophy from the outset, which significantly increases manufacturing difficulty. Even today, the processing of hollow transmission shafts remains a very challenging task.

Materials & heat treatment: Typically utilize special materials such as 9310, 18Cr2Ni4WA, and 20Cr2Ni4A. Various heat treatment methods are employed, including carburizing and quenching, carbonitriding, or nitriding.