1. Main frame structure: Q235 steel structure, galvanized and powder coated finishing. 2. Fabric covering: 850g/sqm high quality double PVC coated polyester fabric, 100% waterproof, fire retardant (DIN4102 B1), M2, CFM, UV resistant, tear resistant, self-cleaning ability, etc. 3. Allowed temperature condition: -30 degree Celsius to +70 degree Celsius. 4. Wind load: max. 100km/h (can be reinforced). 5. Snow load: 75kg/sqm (snow can't stay if use big degree roof pitch design).   No pole inside, 100% available interior space. We can customize tents according to your any request. Please feel free to contact me ! We will give you the most preferential factory price for you! Our company is specialized in producing all kinds of tent. We have 15 years experiences in this line. Also we have our own factory in Guangzhou, China. Sincerely welcome you to visit our factory.