
Factory Price OEM Sand Casting Rebar Coupling Building Grout Sleeve Buildings Cast Iron Pipe. ISO and IATF Certifications: Certified with ISO 9001:2000 and IATF16949 standards for quality assurance. OEM and ODM Services: Full customization support based on 2D and 3D drawings with R&D team involvement. Advanced Inspection Equipment: Equipped with CMM, X-ray, and ultrasonic testing for precise tolerance control. Wide Material Selection: Available in Carbon Steel, Stainless Steel, Ductile Iron, and Alloy Steel. Surface Treatment Options: Customizable treatments including Zinc Coating, Shot Peening, and Polishing. High Annual Output Capacity: Capable of producing up to 500,000 units annually to meet large demands. Competitive Pricing: Factory-direct pricing with competitive costs for investment and sand casting. Experienced Manufacturing Team: Over 10 years of experience in casting, machining, and precision engineering.