... Waterproof Side:white color 650gsm Double layer PVC coated polyester textile,fireproof (flame retardant to DIN 4102 B1 and M2) and WaterproofSpec.Big ... widths of 10m, 12m, 15m, 20m, 25m, 30m, 40m & 50m with a standard side height 4.0m. These structures are modular ... end bays and high peak roof conversions. Big tent series with professional design can be wind loading 100km/hour(0.5kn ...