... . material is grey iron and ductile iron SpecificationsGrey iron casting connection part;1. it's pipe fitting castings 2. material is ... to 30kgApplication Auto parts, machinery parts, household parts, Cooker parts, furniture parts, etcApplied software PRO/E, Auto CAD, Slid Work, CAXA ... higher strength and stiffness, economic and durable. Grey iron casting connection part