Metal Cubes High freezing efficiency Ice raft

High freezing efficiency Ice raft can be set according to different temperature storage time demands

Voltmeter & Ammeter

(100 Feet)

dual-purpose electroscope

Metal Cubes High freezing efficiency Ice raftMetal Cubes A. Cubes Set of 12 Kinds Materials, (size 2x2x2cm) including Glass, Soft Wood, Iron, Lead, Aluminum, Zinc, Copper, Brass, Plastic, Resin, Stonum, C. Cubes Set of 6 Kinds Materials, Size (1x2x3cm 6 pcs), total 18 pcs. including Iron, Lead, Aluminum, Zinc, Copper, Brass. D. Cubes Set of 4 kinds of Materials with Hook, Size (3x3x3cm) including Lead, Aluminum, Brass, Iron. E. Cubes Set of 4 Kinds Materials, size (1x1x5cm) including Lead,