Slip on weld flange: 3/8"～40" DN10～DN1000American Series: CLASS 150, CLASS 300, CLASS 400, CLASS 600, CLASS 900, CLASS 1500, CLASS 2500 European Series: PN 2.5, PN 6, PN 10, PN 16, PN 25, PN 40, PN 63, PN 100, PN 160, PN 250, PN 320, PN 400American Series:Flat Face (FF), Groove (G), Ring Joints Face(R) HEBEI CANGRUN PIPELINE EQUIPMENT CO.,LTD.is a professional slip on weld flange manufacturer and supplier,based in China. we have been manufacturing all types of industrial pipes,flanges and pipe fittings,strictly according to ISO9001 quality management system,thus having reliable quality and reasonable price,Also, we offer free samples and a three-year quality warranty,and OEM service is available upon request. If you are in need of industrial tubes,flanges and pipe fittings,please do not hesitate to contact us at HEBEI CANGRUN PIPELINE EQUIPMENT CO.,LTD .We look forward to working with you.The method of forging typically consists of the following procedures, namely choosing the standard steel billet, heating, shaping, and cooling. The method of forging has a free forging operation, die forging and tire forging. Press the mass of the forging components, the batch quantity of various forging processes, into the output. It is commonly used in forging basic components and forging sections in limited quantities. Rapid efficiency, fast process, ease of machining and automation. The scale of die forging is high, the machining allowance is decreased, and the forging of the cloth is best adapted, increasing the service life of the pieces.