01
Ductile Iron Manhole Covers
Round and square covers plus anti-settlement type, across the common size range. Our core product line.
B125 · C250 · D400 · E600Round / SquareAnti-settlement typeProducts
Drainage Covers & Gratings — Full Range
Six product lines supplied from Dongguan: three cast in our own factory, three supplied through partner factories and quality-checked by Hongcheng. For a quotation, send the product name, size, load class (where applicable) and quantity — by WhatsApp or the inquiry form.
02
Ductile Iron Gully Gratings
Frame-and-grating sets for roadside drainage inlets, in common sizes such as 300×500 and 400×600.
Frame + grating setsCommon sizes in stock range
03
Drainage Channel Covers
Covers for linear drainage channels — for yards, roads, car parks and industrial sites.
Channel systemsCover options by channel width
04
Hot-dip Galvanized Steel Gratings
Welded steel bar gratings with hot-dip galvanized finish, for trench covers, platforms and walkways.
Hot-dip galvanizedPanels & trench covers
05
Stainless Steel Invisible Covers
Recessed decorative covers in 304 / 201 stainless steel that take paving infill and sit flush with the finished surface. Custom sizes available.
304 / 201 stainlessCustom sizesRecessed, paving infill
06
Composite Resin Manhole Covers
Composite resin covers — a lighter alternative to cast iron for suitable locations, in round and square formats.
Round / SquareLightweight vs cast iron