Butt Welding Concentric Reducer: 1. Type: Butt Welding Concentric Reducer 2. Specifications: DN15-DN2000 (1/2-80) 3. Butt Welding Concentric Reducer Thickness: SCH5S XXS 4. Standard: American Standard (ANSI B16.9) GB 5. Material: Stainless steel, carbon steel, alloy steel 6. Butt Welding Concentric Reducer can be used in petroleum, chemical, food, metallurgical, electricity, machinery, aviation, shipbuilding, and other channels to connect. 7. Packing: Wooden case, pallet.