——Designed by: Sinopec Ningbo Engineering Company——Project Name: Ningbo Haiyue 600,000 Tons Propane and Carbon Four Utilization Propane Dehydrogenation Project——Product name: Three major piping systems——Product specifications: DN2400 (maximum caliber)——Product material: WP321H, F321H, WP11, F11, WP310S, F310S——Prefabricated parts include parts and components: pipe fittings, flanges, elbows, steel pipes, gaskets