Steel plate is made of organic coating thin steel plate (or called color steel), galvanized sheet steel, anticorrosive steel sheet (including asbestos asphalt layer) or other thin steel plate, etc. 

 
Pressed steel plate with light weight, high strength, good seismic performance, fast construction, beautiful shape, etc, is a good building materials and components, mainly for the retaining structure, floor, can also be used for other structures. 

According to different use function requirements, pressed steel plate can be pressed into a waveform, hyperbolic wave, ribbed, v-shaped, stiffening type, etc. 

Roof and wall thickness is commonly used is 0.4 ~ 1.6 mm;When used for load-bearing floor or silo thickness of 2 ~ 3 mm or more. 

Wave height generally is 10 ~ 200 millimeters.When not stiffening, the high thick than appropriate control within 200.When using long roof board, the slope can use 2 ~ 5%, the deflection is less than l / 300 (l for calculating the length