Instruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other uses.
Instruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other uses. > Instruments, apparatus and models, designed for demonstrational purposes (for example, in education or exhibitions), unsuitable for other uses.
Duty Rate (from China)
Products classified under Tariff item 9023.00.00
Bridge Engineering Stress Model
A scale model truss bridge with weights used to demonstrate structural failure points in civil engineering classes. Designed solely for educational demonstration, it is not suitable for actual engineering testing or load-bearing applications.
Compound Microscope Simulator
A life-size cutaway model of a microscope showing internal optics and mechanics for educational purposes. The lenses are non-functional, making it unsuitable for actual microscopy, and it is designed exclusively for demonstration in education or exhibitions.
DNA Double Helix Model
A large-scale rotatable model of DNA structure designed for biology lectures and exhibits. It is too fragile for research handling and is intended solely for demonstrational purposes in education or exhibitions.
Electric Circuit Demonstration Board
A large demonstration board with snap-on components to illustrate circuit principles for physics classrooms. It operates at low voltage and is not suitable for practical wiring applications, being designed exclusively for educational demonstrations.
Geological Rock Sample Demonstration Set
Mounted rock and mineral specimens with labels for earth science exhibits and classrooms. The specimens are too large or fixed for practical geological testing, making them suitable only for demonstrational purposes.
Heart Pump Circulatory System Model
A pumping heart model with visible blood flow tubes for biology demonstrations of circulation. It is battery-powered for classroom use and is not suitable for medical training or actual physiological applications.
Human Anatomy Torso Model
A detailed 3D model of the human torso showing internal organs, muscles, and skeleton layers for classroom dissection demonstrations. It is designed exclusively for educational purposes and is not suitable for actual dissection or medical procedures.
Human Skeleton Demonstration Stand
A full-size articulated plastic skeleton on a rolling stand for biology classrooms. It lacks the durability required for clinical use and is designed solely for demonstrational purposes in education.
Molecular Structure Demonstration Kit
A set of colored plastic balls and rods for assembling molecular models like DNA or proteins in chemistry classrooms. It is designed exclusively for educational demonstrations and is not suitable for laboratory experiments.
Periodic Table Wall Chart Model
An oversized 3D periodic table with element samples for chemistry classroom demonstrations. It is not suitable for laboratory reference or practical chemical analysis, being designed solely for demonstrational purposes.
Plate Tectonics Model
A motorized model demonstrating continental drift and plate movements for geography classrooms. It is unsuitable for geological research and is designed exclusively for educational demonstrations.
Rocket Trajectory Demonstration Launcher
A spring-loaded model rocket launcher showing parabolic flight paths for physics projectile motion lessons. It uses safe foam projectiles and is designed exclusively for classroom demonstrations, not for actual rocketry.
Solar System Orrery Model
A mechanical desktop model demonstrating planetary orbits and rotations for astronomy education. It is not precise enough for scientific calculations and is designed solely for demonstrational purposes in education or exhibitions.
Volcanic Eruption Demonstration Kit
A tabletop model volcano using safe chemical reactions to simulate eruptions for earth science classes. It is designed exclusively for educational demonstrations and is not suitable for geological study.
Weather Station Demonstration Model
A classroom model with analog gauges simulating an anemometer and barometer for meteorology education. It is non-calibrated and designed solely for demonstrational purposes, not for actual weather measurement.