Our company holds multiple invention and utility model patents for the design and manufacture of waste heat dryers, draught heat dryers, variable frequency cold dryers, pre-coolers, purification machine design and manufacture, low-temperature refrigeration machine design and manufacture, self-control system selection and WINCC configuration, multi-tower PSA pressure swing adsorption dryers, multi-tower PSA hydrogen purification, and multi-tower PSA adsorption dryers for CO2 removal.