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The Cranes Are Divided Into Several Levels Of Work

8 level

Work Level correspondence:

A1-A4 light grade such as: installation, maintenance of electric beam-type cranes.

A4-A6 Intermediate: Soft hook-and-bridge cranes for machining workshops

A6-A7 heavy grade such as: Heavy work shop soft Hook bridge crane

A8 overweight grade such as: Metallurgical bridge Crane, continuous work of electromagnetic, grab bridge crane