circular type manhole cover

circular type manhole cover High-quality pipe fittings, such as elbow, flange, tee1)Standard: ISO, 3A , DIN, ISO,SMS, IDF ANSI, JIS, GB, HGwe can also produce other specifications according to customers' requirements3) Material: stainless steel (304, 304L, 316, 316L, 321, 321H, 310S, 347H etc.)4Size:as per customer5Special design available , we can develop certain production according to your drawing.6.Outter packing :as per customer's request
circular type manhole cover