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Japan Railway System Standard Equipment; Sichuan Shengtuo Testing Technology Co., Ltd. provides falling ball type geotechnical characteristics detector. The equipment is developed for highway, railway, water conservancy, airport, bridge, construction and other engineering fields, and can be effectively applied to various stages of design and construction; the instrument provides rapid test methods according to the requirements of current regulations and for mechanical properties such as strength and deformation of materials. , effectively solve the problem of uneven deformation. It can quickly test the deformation modulus, strength index, foundation coefficient K30, CBR, deflection value, dry density, compaction degree and other indicators of geomaterials.