peter@youwaycrane.com| +86-189 9815 6978 |
16
AUG
2013

Crane Service Classes

In China National Standard, the Crane service classes ranges from A1 to A8. The A3 crane is of light service, meanwhile A7 crane is of severe service. It is similar to the CMAA Crane Service Classes as following. CMAA has established crane service classes so that the most...