1. Cerate all - directions and diversified amenity celebration service with meticulous effort.

2. This paper analyses the cause of reform of cerate pump and its operation condition after the reconstruction, and the economy character is analysed.

3. The result of experiment shows that polyethylene cerate and bentonite pregel play important roles for flash primer.

4. Chemically cleaning and preventing carete has features of simple operation, convenience, good effect of cleaning and preventing cerate and high benefit.

5. With color picker, all range of artists will be able to cerate a more sensorial and visual insight of their surrounding nature's colors.