Contains two cast-iron vertical columns approx. 180 mm tall connected by bars, supporting an expansion bar 380 mm long, fixed to one upright and resting on a friction pointer with a scale at the other. Supplied with one each of aluminium, iron and brass expansion bars.

We are manufacturers and suppliers of the Expansion Apparatus, serving Algeria, Argentina, Australia, Bahrain, Bangladesh, Belgium, Bhutan, Brazil, Cambodia, Cuba, Cyprus, Denmark, Ecuador, Egypt, Ethiopia, Finland, France, Georgia, Germany, Ghana, Hungary, Iceland, Italy, Japan, Jordan, Kenya, Kuwait, Malaysia, the Philippines, Tanzania and Uganda.