198-A Economy Ball & Ring

product Overview:


Introduce students to the concepts of expansion and contraction using the ball and ring. The unit demonstrates the expansion of metal when heated and its contraction when cooled. When either the ball or ring is heated, the ball will not pass through the ring. When cooled, however, the ball will pass through the ring freely. The ball and ring are mounted with wooden handles to protect hands from the heat.

Specifications

We have 70 skillful operators, 5 machine mechanics and 31 quality inspectors, total annual output capacity in design can reach 130 millions sets.

Keyword

Biology

Earth & Space Science

Human Anatomy

Laboratory Supplies

Physical Science

STEM

Customer message

Our team has been and will continue to be committed to science education industry to provide quality products at competitive prices and good services to our clients all over the world.