This standard specifies the test methods, inspection requirements and judgment rules for elevator T-shaped guide rails and guide rail connecting plates. This standard applies to guide rails made of T-shaped steel by mechanical processing or cold rolling. It does not apply to T-shaped hollow guide rails formed by bending plates.
JG/T 5072.2-1996 history
1996JG/T 5072.2-1996 Guide rails for lift.T-type inspecting regulations