https://castingquality.com/casting-technology/casting-material/ductile-nodular-graphite-iron/austenitic-ductile-iron-astm-a439.html Specialized in Sand Casting, Investment Casting and CNC Machining in China. Material cover Cast Iron, Carbon Steel, Stainless Steel and Alloy Mon, 25 May 2020 07:38:38 +0000 hourly 1