... :Silica solution casting Certificate:ISO9001:20 Product Name: cast iron auto exhaust pipe castingsMaterials: grey iron, ductile iron, malleable iron,heat resistant ... Place of Origin: Ningbo, China Software for specification drawings: PDF, Auto CAD, Solid work, JPG, Proe- Standard: ASTM, AISI, BS, DIN ... micrometer, multiple use angle mearuring tool, CMM etc. cast iron auto exhaust pipe castings