material:QT450-10 1. high quality 2. reasonable price 3. excellent after-service 4. brand spare parts kindsDuctile cast ironmaterialQT450-10Chemical compositionC:3.2-3.8% Si:2.2-3.0% Mn:<1.0 S:<0.02 P:<0.058Mechanical propertiesTensile strength:>450mpa Yield strength:280-310mpa elongation:>10%Matrix hardness160-210 HBWhy us?1.competitive price2.International quality standard-highly durable and ...
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