15.7"x15.7" Recessed Manhole Cover This recessed steel manhole cover is designed with thickened steel plate. It is robust, stable, and reliable in its quality, function, and performance. Easy to bolt-on assembly. They were widely used as a drain and inspection opening attachments on ships, pumping stations or parking lots. Stylish Appearance Powder-coated Steel Plate 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. Powder-coated Steel Plate: The recessed manhole cover is 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: 40x40 cm/ 15.7x15.7 in, Overall Frame Size: 47x47 cm / 18.5x18.5 in,
