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The structure of main girder is triangular truss , which strengthens the whole structure, lightens the weight, and enhances wind resistance.
Thermal expansion seamless steel legs are jointing with (or truss legs) and the main girder, ground girder by the bolt or pin connections. Stable structure, easy installation and removal.
The design and manufacture of equipment is to meet the national requirements of rules and standards which is effective currently and the need for using under special meteorological conditions.