1. Ductile iron gearbox housing meets technical standards such as dimensional accuracy, hardness, surface roughness, and pressure bearing capacity. 2. We provide one-stop customized services from ductile iron gearbox housing design, manufacturing, to delivery, supporting multiple file formats such as Solidworks, Pro/E, AutoCAD, PDF, JPG, DXF, IGS, STEP, etc. 3. We have an automated sand casting production line, cast iron gearbox housing combines precision machining with efficient assembly to increase delivery speed.