... requirement or drawing 6. Professional service 7. Process: sand process casting 8. Application: pump parts 9. Surface ... and so on)2.Processsand casting, gravity casting, low-pressure die casting, high-pressure die casting.3.CertificateISO9001 ... numerical lathe, all types of lathe.7.Surface finish processpolishing, sand blasting, heat treatment, painting, powder coating, anodizing, electroplating ...