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Educational Equipment

The product is a magnetic absorption electrical demonstration experiment. The...
The product consists of 4 single pulleys, two parallel pulley 2, two series...
The product is composed of base, lamp holder, handwheel, magnetic block,...
The product is composed of a base,hand ring track,aluminum frame,  steel ball,...
The product is composed of an outer cylinder, a telescopic cylinder, prism, slit...
The product is composed of the shell, the input end, the output end, the...
Detachable transformers, 500 coils, primary coils, 50 coils, 100 coils, 200...
Solenoid: 50mm in diameter, 2 parallel coils, each of 200 rings, each with an...