Application of stainless steel envelope to high-level bio-safety laboratories

 Presents the application of stainless steel envelope to a high-level bio-safety laboratory, focusing on the main construction technology of stainless steel envelope, the installation of air-tight door, and the sealing of pipeline passing through the envelope. Considers that the stainless steel envelope is suitable for the reconstruction of high-level bio-safety laboratories and the air tightness meets the requirements of the codes.