Double wall calorimeter with easily removable spring heating element unit. Operates on 3-6 Volts DC and approx. 5 watt. It consists of inner aluminium reservoir, […]
vacuum formed diaphragm model for class set of 8
Printed plastic lung volume bag with 2-way mouth piece
Model of human skeleton, 85-cm/34″
5 Topics for Level A and 2 Topics for Level C. All total of 35 books.