30x30cm Recessed Manhole Cover This recessed steel manhole cover is designed with powder-coated steel plate. So it is robust, stable, and reliable in its quality, function, and performance. It is widely used as a drain and inspection opening attachments on ships, pumping stations or parking lots. Stylish Appearance Power-coated Steel Precise Dimension Sealed and Locked Features & Details Stylish Appearance: These square manhole covers with appealing appearance, smooth in surface. Raised stylish patterns of the steel plate significantly increase the friction when you walk over it. Sturdy Steel Plate: The recessed manhole cover made of high-quality steel with a sealed plate and frame. The powder-coated surface is rigid, durable, rustproof, and anti-corrosion. Precise Dimension: The inspection cover builds in a precise dimension with thickened plates. With Clear Opening Size: 30x30 cm, Overall Frame Size: 37x37 cm, Height: 4 cm. Sealed and Locked: The cover is a powder-coated drain cover
