Insulation regulating valve

When ordering, please specify the following:
  1, the valve model
  2, the valve diameter and within the aperture
     Body material and Trim Materials
  4, the implementing agency models and accessories
  5, the mode of action of the valve
  6, the name of the fluid medium
  7, commonly used in traffic and the maximum and minimum flow
  8, the fluid pressure and differential pressure
  9, the temperature of the fluid, the specific gravity or density of
  10, other special requirements