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student study guide copy masters
Seven-metal 20mm density cube set with element-stamped brass
Depicts Earth's internal layers plus active and passive margins
specimen preservation
6 armatures
Polyvinyl Alcohol Solution, 4%, 1L Standard_ASTM student study guide copy mastersFour percent polyvinyl alcohol solution, a versatile synthetic polymer used for adhesion, film formation, and as a base for classic slime chemistry demonstrations.
US$ 32.00
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