... : Wooden cases, Pallets, Crates, Plywood cases Surface: Oil, slip-on flange:1.Standard:ANSI, DIN, JIS, BS, DIMA, UNI, EN, GOST ... , Alloy steel3.Size: DN10-DN6004.Type:Blind Flange, Thread Flange, Slip On Flange, Welding Neck Flange, Socket Welding Flange, Lap Joint Flange5.Certificate:TUV Certificate ... at the maxium range 50000 tons per year slip-on flange