Description
Bell jar with electric bell
Brand: kelsun
SKU: 20201.01
Art NO.: 20201.01 It's usually used in combination with air pum. To demonstrate that non-tracsmission of sound in a vacuun.
Bell jar with electric bell
Brand: kelsun
SKU: 20201.01
Art NO.: 20201.01 It's usually used in combination with air pum. To demonstrate that non-tracsmission of sound in a vacuun.