Engranajes de motor de rueda de engranajes de plástico de 0,5 módulos de 10 dientes 50 piezas para eje de 2 mm juguete hágalo usted mismo
Modulus: 0.5 mode. Suit for a science DIY projects such as rc model car, model electric robot and windmill, education such as displaying how gear rates work, and any other family small motor DIY project.