The tensile test of molding materials is mainly used to determine the tensile strength, tensile modulus, and other stress-strain relationships of specimens. The measurement of modulus is required to be carried out in the initial stage of the test, generally between 0.05% and 0.25% strain. This demands extremely high precision in both stress and strain measurements. Lishi adopts high-precision load cells and extensometers, enabling accurate measurement of the elastic modulus of specimens.