Market Survey:

Steel Cement Raised Panel： The main material is steel sheet, but the price of Steel is not steady, and the Sources of Steel are different with quality good and evil intermingled. (Can not detect with eye alone) The steel panel market occur vicious cycle of falling quality of Steel Panel.  

Calcium Sulphate Raised Panel: Main material is Super-strength gypsum which is of rich source. Add high strength complex formula, essence formula which is of steady price and quality. In the past, calcium sulphate panels are only imported with expensive price, but now mass production in China is available with good quality.