This standard specifies the requirements for the manufacturing and acceptance of small combined machine tools (including small combined machine tool automatic lines and small combined machine tool general components). This standard applies to machine tools consisting of spindle components with nominal dimensions up to 250mm.
JB/T 7448.2-1994 history
2006JB/T 7448.2-2006 Miniature modular machines Part 2: Specifications
1994JB/T 7448.2-1994 Technical conditions for small modular machine tools