factory whilesale interesting fun Fire alarm device DIY technology small invention puzzle assembly toy science popularization
(No reviews yet)
Write a Review
Frequently bought together:
Related Products
Related Products
Science and technology small production interesting invention Mini Solar Helicopter primary students DIY puzzle assembly toys
$1,935.99
Warm tip: products for the material package, need children to do their own production, this solar aircraft can not fly Oh, can not go, understand the principle of solar energy. Principles for...
Transmitter Science Experiment Toy primary school student science popularization device science and technology invention factory
$1,814.99
Transmitter course courseware The principle of radio receiving and transmitting is that the transmitter sends out current of different frequency and wavelength according to the requirements of...
Science and technology small invention self-made earthquake alarm puzzle assembled model equipment scientific experiment diy
$2,419.99
Product Name: Science and Technology Small Production: Earthquake Alarm
Weight: about 55g
Dimensions: 8*6*12.5cm
Packing: opp self-sealing bag
General knowledge of seismograph: In 132 AD, Zhang...
