... , Feature:Material: steel casting through self smelting according to the equivalent: ASTM, EN, DIN,ISO,JIS, GB, etc;Foundry: through sodium ... ,ISO;ASTM;DIN;JIS;EN;GB Machining tolerance: drawing;Gear Specification: ANSI/AGMA Product Parameter:Material: ASTM A27 Gr.70-40Appro ...