Specification :
Material: ductile iron GGG50 Specification: 750x400mm 750x500mm Surface: black bituminous paint, epoxy painting or as per client's requirements Packaging: iron or wooden pallet Advantages: non-slip, safe, easy to install and clean, nice anti-pressure and attractive appearance Standards: BS EN124, ASTM and DIN Delivery lead time: 15-30 days OEM and ODM orders are welcome Inspection: professional lab Applications: pedestrians, car parks and aircraft pavements Production facility: traditional hand moulding and automatic moulding lines to manufacture manhole covers for better surface condition and dimension accuracy We can produce ductile iron and gray iron gully gratings, manhole covers and other castings according to customer's drawing or samples, main products include: manhole covers, channel grates, surface boxes, water meter boxes and pipe fittings Guarantee: we will replace any heavy duty manhole covers and gully gratings that have been properly installed and broken in normal use, free of charge after receipt of broken castings