HB 8137-2002 in English

This standard specifies the dimensional requirements for a specific type of combined duct system, focusing on the second dimension series. It provides detailed specifications for the design and measurement of components within this series, ensuring consistency and compatibility in manufacturing and application. The standard outlines the necessary dimensions and tolerances to guarantee proper assembly and performance. It also includes guidelines for the marking and identification of parts to facilitate quality control and traceability. The content is structured to support both design and production processes, promoting uniformity across different applications. The standard is applicable to industries requiring precise and standardized duct systems.