Flanges and pipe fittings are used in many different fields, such as the transportation of oil, natural gas, water, etc. There are many types and shapes of flanges and pipe fittings, and their materials are also diversified according to the type of fluid and वातावरण प्रयोग गर्नुहोस् (कम कार्बन स्टील, कम Allooy स्टील, स्टेनस स्टीय, उच्च मुठे स्टील, गैर-फरिन स्टील, आदि)।