Spare part for coal mining machinery

Technical specifications:
Item name: accessory for coal mining machinery and equipment
Material option: ductile iron or grey iron
Application: mining processing or heavy machinery industry
Process: sand casting
Standard: DIN, BS, ASME,ISO,JIS, etc
Weight range: 0.5 kg - 500 kg
Surface: anti-rust oil or epoxy powder coating or ordinary paint etc.
Custom-made, drawings or samples welcome.
Picture part is only for reference. Other similar parts are welcome for development.