High Quality OEM CNC Custom Machining Cast Iron Ductile Sand Iron Casting

High Quality OEM CNC Custom Machining Cast Iron Ductile Sand Iron Casting. ISO 9001 Certified Quality: Certified by ISO 9001:2015 system ensuring superior product quality and reliability. OEM/ODM Customization: Full-process customization from drawings/samples, including material, size, and surface treatment. High Precision Machining: CNC machining tolerance from 0.005mm to 0.1mm with Ra 0.8-Ra3.2 surface roughness. Trusted by Top Manufacturers: Prized supplier to China's top 3 construction machinery giants with Best Supplier Award. Wide Material Selection: Available in Ductile Iron, Gray Iron, and other materials as per customer requirements. Fast Delivery Time: Normal orders produced within 3-4 weeks; peak/off-season lead time within 15 workdays. Comprehensive Surface Treatment: Options include Sand Blast, Dacromat Coating, Finish Painting, and more.