The narrow-mouth design suits pipeline connection and automated filling, effectively reducing large-area contact with air during chemical transfer. The dual-layer HDPE structure offers excellent barrier performance, and the brown body provides good light blocking, making it suitable for photosensitive electronic chemicals. Paired with a PTFE sealing gasket, it resists leakage in long-term storage and transport. The drum undergoes a dust-free washing process with strict impurity leaching control, and its carrying handle makes it suitable for high-purity reagent dispensing, sealed transfer and medium-to-long-term warehousing.