Tech-zipⅡ75-400 is the secondary and improved system based on common roof plate, which makes the roof a very strong wind-resistance and waterproof advantages, whose wind resistance is 3 times more than common roof plate on the base of the same material, by adding an air-tight strip and an innovative buckling structure ,it can solve the problem of water seepage and leakage caused by snow and other factors, so the limitation of common roof plate is perfectly solved ,  Tech-zipⅡ75-400 can be used in special region or special project, particularly good for strong typhoon area, coastal areas and area with large wind pressure.