Advantage of our Manhole Covers 1) Can supply all kinds of load class Product such as A15/B125/C250/D400/E600/F900 2) Against theft and safety, double sealed, watertight type 3)material No. GGC50(DIN1693-73),QT500-7(GB/T1348-1988), 80-55-06(ASTM A536), FCD500(JISG 5502-2001),500/7(BS2789:1985). 4)Free charge of design.
1.Process: Sand Casting. 2.Casting experience: 10years,OEM service available 3.Surface: blackening, galvanize, plating,painting,etc. 4.Material: QT, iron, steel 5.Technology: sand casting 6.Advantages: Delivery on time, according to the demand for materials 7.Packing: wooden case or as your requirement. 8.Deliverywithin 20 days after receiving last confirm information. 9.Production Capacity: Sand Casting 2000 tons per month,Investment Casting 120 tons per month. 10.Certification: ISO 9001:2008.
1)Manufacturing process: 1.Sample or Drawing by customer 2.Tooling proposal&Discussion 3.3D Tooling Design 4.Tooling production 5.Rough parts manufacturer 6.CNC Machining 7.Fitting&Finish 8.Tooling Measurement&Check 9.Assembly 10.Trial Production 11.Correction 12.Final Trial 13.Samples Inspection 14.Sample Approval by customer 15.Tooling Approval 16.Ductile iron sand casting