D400 C250 Square Shape Ductile Manhole Cover and Frame

D400 C250 Square Shape Ductile Manhole Cover and Frame. Customizable Color Options: Available in Black, Grey, or customized to customer requirements. Multiple Class Ratings: Offers A15, B125, C250, D400, E600, and F900 load classes. Custom Shape Capability: Provides Round, Square, and Rectangle types based on demand. OEM Design Service: Supports casting design based on drawings or physical samples. ISO9001 Certified Quality: Manufacturing process accredited to ISO9001:2015 and DIN En124 standards. Professional Inspection: Conducts size, weight, surface, and metal property inspections. Flexible Packaging: Packaged in wooden pallets, steel pallets, or as per customer demand. Ductile Iron Material: Made from high-quality ductile iron for durability and strength.