美国采购需求：LED显示屏、桁架帐篷、舞台、灯光、音响系统

I'm in the market for a reliable truss system specifically designed for outdoor concerts. Our upcoming events require a durable and versatile setup that can accommodate various lighting and sound equipment. I'm looking for systems that can support significant weight while ensuring safety and stability, especially in open-air environments. Please provide details on your available truss options, including specifications, load capacities, and installation requirements. It would be helpful to know about any modular designs that allow for flexibility in different venue configurations. Additionally, if you have any recommendations for accessories or complementary systems that enhance performance at outdoor concerts, I'd love to hear about those as well. Looking forward to your prompt response!