Polypropylene Test Tube Rack for 90 x 13mm Tubes Type_Dual End Unequal-wheel pulley with a 2-inch

Unequal-wheel pulley with a 2-inch and a 1

Primary and secondary copper coils with a sliding iron core and 4mm terminals

3 glass beakers each holds 1000mL with low-form design and spout for large-volume chemistry and laboratory applications

the heavier-load counterpart to PH1155I

used to route current down one of two alternative branches in series-parallel circuit investigations

Polypropylene Test Tube Rack for 90 x 13mm Tubes Type_Dual End Unequal-wheel pulley with a 2-inchThree piece polypropylene test tube rack with a fold up grid frame, holding up to 90 tubes at 13 mm in a 10 by 4 inch footprint and disassembling flat for storage.