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05-09
2020
Patent Certificate for a New Type of Automatic Feeding Bin for Coal-Water Slurry Preparation
Patent Certificate for the Sampling Port of a Atmospheric-Pressure Reactor
Patent Certificate for a New Type of Liquid Chlorine Vaporizer with Automatic Detection and Shut-off Functions
A device for removing trace amounts of water from organic solvents
A rotary‑float level gauge for horizontal storage tanks