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08-15
2020
A continuous production apparatus and method for a thiocyanate intermediate of cartap hydrochloride
05-09
A preparation method for increasing the proportion of the 1,3‑isomer of bithionol insecticide
Patent Certificate for a Powder-Handling Compactor
Patent Certificate for an Automatic Solvent Cleaner
Patent Certificate for a Safety Metering Device for Liquid Yellow Phosphorus