Microwave Tower Three or four supporting legs ISO9001/ISO14001/GBT28001-2001 certification Higher ... yield strength>=345MPA;Q235B/A36,minimum yield strength>=235MPAStructure: Three Support Leg/For Support LegDetails:Can be designed as per customer's ... bracket,climbing steps,safety guide cable,lightning rod,mounting bracket for obstruction light,holding down bolts/nuts,and all other bolt ...