Welcometo SYI Group
about Our Export Manhole Covers Cast Iron:Ductile IronHinge Type (available)Single seal / Double seal (available) Lock(available)Closed key hole (available) Recessed type (available) Two lifting Key holes (available)Double triangular (available)Cut-corner Design (available)
GUARANTEE: SYI Foundry will replace any Heavy Duty covers/gratings, that has been properly installed and broken in normal use, free of charge after receipt of the broken casting. Design & Production Facility& Quality Control :DesignRaw Material InspectionRaw Material inspection including chemicalcomponents analysis, tensile strength test and etc.
Quality Control GroupsDimensions TestManufacture process InspectionProcess Inspection including sand cleaning, assembling, packing and coatingFinal Inspection including delivery marks and etc.Particular Tests for different products, such as Load Test, Hydro Test and etc.
LaboratoryChemical ComponentsMicrostructure TestTensile Strength* Physical and chemical analysis, dimension measurement, weighting and other inspection of the raw material and finished products.
* Particular test for different products.
* Visual measurement and conformation to standards.
* Identifying, recording and disposing of rejected material.SYI Group