The first-class internal high-pressure forming equipment meets the requirements of integral forming of reducing pipes and special-shaped pipes, with good product spatial size consistency and high precision. The company has several sets of equipment of different specifications such as 500t, 2500t, 3000t, etc., and the technology is domestically leading. The processing range is the internal high pressure forming of carbon steel and stainless steel pipe fittings with length ≥5000mm, diameter φ30——φ250mm, wall thickness δ1-—δ3mm, which are widely used in automobile intercooler pipes, exhaust pipes and body structure parts. The vehicle weight reduction, aesthetics, consistency and other aspects are well reflected.