This category encompasses machined mechanical component parts that have been processed through specific machining operations to meet particular specifications and applications. Standard bearings, gears, shafts, couplings and other components are subjected to lathe machining, milling, grinding, drilling and other processes to achieve optimized dimensions, shapes and precision tailored to customer equipment and machinery. Products include high-precision NC/CNC machined parts, surface-treated components, and combination-processed parts, addressing special specifications and custom one-off mechanical component manufacturing that cannot be met by standard products. This category is distinguished from finished machine parts or electronic component processing, being strictly limited to processed products within the scope of mechanical component parts.