metal roof truss manufacturer 1.high load capacity 2.TUV ISO 3.easy to install,stock 4.non-rust,recycle metal roof truss manufacturer1. ... ,3m,4m,customizerTruss connect: spigot/screwLoad capacity:500kg to 1200kgs,according to the truss specification 1 meter truss N.W:8 ... truss lift tower Accessories of truss system Our company main products:aluminum truss,bolts truss,spigot truss,aluminum stage,glass ...