Parts are manufactured in strict accordance with drawings and related processes—on-site guidance and supervision by quality inspectors and technicians. During the manufacturing process, all parts are subject to first inspection and self-inspection, and the parts that pass the inspection are officially put into production.

The manufactured parts are inspected one by one by the quality inspector. If the manufacturing quality fails to meet the specified requirements, it will be repaired or scrapped after being approved by the person in charge of the technical department.