Product Name: En 124 D400 Round Ductile Iron Grating Manhole Cover Model NO.: MJ-YX-BZ730H100D400 Certification: ISO 9001:2000 Standard: Une En124 Surface Treatment: Sand Blast Material: Iron Machining: CNC Machining Application: Road Pavement Sand Core Type: Resin Sand Core Casting Method: Thermal Gravity Casting Type: Clay Dry Sand Material: Iron Shape: Round Certification: ISO Painting: Bitumin or as Customer's Requirements Delivery Time: Within 30-50 Days After T/T or L/C Standard: Une En124 Class: B125 C250 D400 Techniques: Casting Factory: Over 20 Years Experience Quotation Lead Time: Within 24 Hours Trademark: MJ Transport Package: Pallet or as Customer's Requirements Specification: ∅ 730/830mm Origin: Hebei, China HS Code: 73251090 Product Description Ductile Iron Casting:Molding process:Green sand/Resin sandMolding method:Hand molding/Molding machineIndustry concerned:Municipal construction/Road construction/AutomotiveTechnical Data Sheet:Questions And Answers:Q:Why choose Mingjun products?A:We have our own factory,therefore we can assure the quality of each product and the competitive price.Q:Do you provide OEM service?A:Yes,we provide OEM service with best price.Q:Do you provide customized products?A:Yes,we provide customized products.Customer provide drawings and/or specifications,we can manufacture accordingly.