Flange rough, Flange blank, forged rough, forged blank
All of our flanges are made by forging, never casting or casting-forging, only forging. Though casting or casting-forging flanges price is cheaper than only forged flanges, but the quality in using of pipe connecting is terrible, casting flanges only fit for non-pressure pipe connection, can not use for pruessure pipe connecting, when users buy flanges…