Wedding Tent from Zhuhai Liri Tent Technology Co., Ltd. This is Amy from Liri Tent, we are the biggest manufacturer for Aluminum & PVC tent in China. About our tent, you can know more as below, -Clear Span: 3-80M -Bay distance: 3 or 5M, the length could be increased and decreased by 3 M or 5M without limit. -Frame: Reinforced aluminum alloy 6061/T6 extruded profile,surface anodized finish; it can last for over 20years. -Fabric: Double pvc coated polyester, 850g/sqm, block-out water-proof, UV resistant, fire retardant under European Standard M2; it can last for 10years. If any interest , please inform us your detailed requirement then we can send you the price accordingly.