The 200L large-capacity stainless steel drum suits bulk raw material storage and transfer in semiconductor plants. The thickened body is structurally sound and withstands long-term storage of heavy loads. A passivated inner wall builds a stable protective layer that blocks metal ion leaching, protecting the purity of photoresists and high-purity solvents. The mirror-polished outer surface is clean and dust-free, making quick wipe-down cleaning in cleanrooms easy. The large-diameter opening suits automated pipeline filling, and dual side handles work with forklift transfer — covering bulk storage and automated feeding for mass production.