The company refers to the relevant regulations of the EJMA standard and develops and produces in accordance with the GB/T12777-2008 standard. Design and produce products of various specifications and models according to different working conditions. Using hydraulic one-step molding technology, the size is accurate, the surface is clean, the product has the advantages of compact structure, reliability, good interchangeability, no leakage, easy installation, and long service life. With its excellent quality, it is widely used in metallurgy, thermal energy, electric power, construction and other fields, and is highly praised and praised by users.