En124 heavy duty cast iron manhole cover Material:ductile iron and grayiron Feature: anti-corrosion, anti-rust, anti-abrasion, excellent anti-pressure capability; anti-theft:non-recycle, various color and pattern available on request Class:a15, b125, c250, d400, e600, f900 Paint:bituman or epoxy coating Application: pedestrians, car parks and pavements Process:material inspection--raw casting--sand blasting--rough machining---surface coating--production inspection--packing--shipping 50kg
