The S1-40L H-type cylindrical liner bag is formed in one piece from single-layer high-purity PE. Its cylindrical body fits closely against the inner wall of 40L vertical stainless steel drums, reducing material clinging loss. Produced under dust-free control throughout, its particle and metal leaching levels meet electronic-grade standards, suiting sensitive chemical media such as photoresists and etching liquids. The full sealing kit — clips and dust cover — blocks external dust and oxygen, and the top opening fits dedicated supply tubes. Single-use replacement removes the need to clean steel drums, effectively avoiding cross-contamination between batches — suited to large-capacity feeding on semiconductor mass production lines.