Ss Flange, CS Flange, Nickel Alloy Forged manufacturer / supplier in China, offering Od 1800mm S32750 Inconel 600 625 718 Monel 400 K500 Forged Ring Nickel Alloy Rolled Ring High Performance Precision Ring Casing Joint Drilling Rig Casing, Custom Forged Copper Alloy Ring with C17200 for Aerospace & Electronics, Lightweight 5052 Aluminum Rings for Construction and Transportation Industries and so on.