1 the main tube is 50mm,3mm thickness, 2 standard size :250*250,300*300,350*350mm 3 the length of single is 1-4m

Guangzhou Ruiying Stage Equipment Co,Ltd is a professional manufacturer specializing in producing flight case,aluminum trusses,tents and moving stages.We possess the ISO9001:2008 certification. So far,we are one of the leading manufacturers with large-scale production in domestic.The top-quality producs are recognized by the professionals in rhe field and marketed in Europe,North America,Australia and Middle East.

screw-type squre truss 300*300mm