Why are your prices so cheap?We are a direct factory with advanced equipment, with small proce sing errors, high speed and cheap cost.Can't install, what should I do?We can provide installation instruction videos, installation instructions, and send techniciansto the site to We can pack all accessories as a whole, including installation toolsHow to prove that you are a real factory?Can show you a video, watch the factory and processing equipment, etc.Have you done any foreign cases?Of course, we have sent people to install and send technical instructions to install in 13 countries.Do you have a test report?We not only have inspection reports for membrane materials, but also corresponding reports for steel structures.Is this kind of building environmentally friendly?The steel structure can be used for 50 years, the membrane material can be used for more than 15 years, the membrane can be replaced directly when the membrane material is broken, and the steel structure skeleton can be recycled