Straight Pattern Glass Key Stopcock, Borosilicate Glass Material_Polytetrafluoroethylene (PTFE) 5mA moving coil galvanometer at plus or minus 5mA moving coil galvanometer at plus or minus 2 letting students vary the moment arm distances on either side and find the balance point for any combination of masses Straight pattern glass key stopcock in borosilicate glass provides controlled flow for burettes and chemistry apparatus assemblies
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