With hoisting method by double cantilever beam,the hoisting of large steel trusses was get success.

 
  • 雙懸臂梁吊裝法解決了大型鋼桁架高空吊裝問(wèn)題,且省工、省料,實(shí)踐證明,該法安全、可靠,較為實(shí)
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