Model: aluminum alloy series of truss 
Specifications (mm) 
220 x220x (1000 ~ 3000) 
250 x250x (1000 ~ 4000) 
300 x300x (1000 ~ 4000) 
400 x400x (1000 ~ 4000) 
400 x500x (1000 ~ 4000) 
450 x450x (1000 ~ 4000) 
520 x520x (1000 ~ 4000) 
520 x760x (1000 ~ 4000) 
670 x1010x (1000 ~ 4000) 
And so on a variety of models, can also according to your requirements 
Material: aluminum alloy (gb) 
Apply to show light hanger, stage decoration hanger, display rack, display rack, all kinds of performances,