round manhole cover

round manhole cover: Materials: ANSI304, 316, 304L, 316L, SUS and stainless steel With/without pressure Pressure: 0 to 0.3MPa (0 to 3bar) Sight glass: With or without Temperature: -20 to 200 degrees centigrade Shape types: Round, square and elliptic Sealing: EPDM, NBR, silicon and FPM Height: 80 and 100mm etc, we also can produce according to customers\' sample or drawing Appearance: Polished, electrolyze, sand blast and pickling Sight glass with flange or union Non-standard fittings Customized requirements are accepted Size: DN 150 to 600 Packing: Inner: Carton Outside: Ply-wood case Minimum order quantity: 10 pieces/size