... Manual hoist7.8pieces or more pieces outriggersstage truss / Spigot Truss Model No. : ST30Size: 300MM*300MM (including tube length)Main Tube ... The main characteristics are compactness, strength, versatility, low unit weight and easy assembly with the box corner system. ... Rick Law (sales manager)Guangzhou Chaoda Performance Equipment FactoryADD No.2, Zhubao Industrial Zone, Xinke, Junhe Street, Baiyun ...