WU JIN.WU JIN is a professional forging flanges and pipe fittings manufacturer with more than 20 years' history, equipped with more than 80 processing equipments, such as 4,000 tons forging hydraulic press, 4,000mm ring milling machine, as well as 18 testing equipments, such as spectrometer and ultra-low-temperature impact tester. With an annual capacity of 30,000 tons, the company can produce carbon steel, alloy steel, stainless steel and nickel-based alloy forgings, with a maximum forging billet outside diameter of 4,000 mm. core products include high-pressure jacketed flanges, necked butt-welding flanges, pipe plates and large-diameter flanges, The core products include high-pressure jacketed flanges, necked butt-welded flanges, pipe plates and large-diameter flanges, which are widely used in the field of pressure vessel equipment.