Serial NO. Name 1 Sealing sheet with perforated 0.1mm SS316 inserted 2 Sealing sheet with perforated 0.1mm SS304 inserted 3 Sealing sheet with perforated 0.2-0.25mm ordinary carbon steel inserted 4 Sealing sheet with flat 0.05mm SS316 inserted 5 Sealing sheet with metal mesh inserted 6 Sealing sheet with non-metallic fiber inserted