1 impact strength: it is mainly used to show the resistance of the material to the impact stress.

2 dimensional stability: the stability of the size of the object affected by temperature changes.

3 creep properties: the material is under constant temperature and constant stress, the phenomenon of slow plastic deformation occurs, known as creep.

4 shrinkage rate: the rate of shrinkage of plastic products, cooling and curing by mold release, the size of the original mold size and the percentage of the error.

5 tensile strength: in the tensile test, the specimen until the maximum tensile stress, which results in a kilogram force / cm 2[PA], said the area is used to calculate the original cross-sectional area of the specimen.

6 bending strength: the material under the action of bending load or to achieve the maximum stress can withstand the maximum stress, with kg / cm 2[PA] said.

7 strength: the ability of the material to resist permanent deformation and fracture under the action of external force is called strength.

8 weatherability: materials exposed to sunlight, hot and cold, physical and chemical properties of the performance itself to keep rain and climate conditions.

9 geometric stability: the stability of the shape of the object affected by temperature changes.