metal roof truss manufacturer 1.high load capacity 2.TUV ... -15daysPacking:air bubble film,carton,or custom Feature of the truss1.non-rust,firepoof,hardwearing,light weight ... .16 degree high hardness,strong structure.Widely usage of the truss:performance truss,stage truss,trade show ... truss,etc. The truss lift tower Accessories of truss system Our company main products:aluminum truss,bolts truss,spigot ...