OEM alloy steel inventment casting as per ur drawings/ samples, Material&Dim tolerance according ... tool with quite complex shape, Material IC8620, alloy steel inventment casting, nitrogenize surface after casting;2. Quality certification:ISO9001;3. MOQ: 100 ... ,ASTMGermany DIN,VDG P690Japan JIS;7. We OEM stainless steel, carbon steel, alloy steel investment casting as per your drawings or samples;8. 3 ...