What is the previous version of the scaffold fastener (JGJ166-2008) for construction? That is, the implementation of the current version of JGJ166-2008 will soon be replaced by 2009.7.1 version.
JGJ130-2001 is the construction of steel tubular scaffold safety technical specifications in the second half of the new version JGJ130-20112011 December 1st implementation
In addition, I did not hear that JGJ166-2008 has a new version of ah
What does the previous version mean? Once the new version comes out, the previous version is cancelled
