Chemical additives, namely, chemicals for use in oil, gas and water drilling and assay mining

Apparatus and instruments for conduction, distribution, conversion, storage, regulation or control of electric current, namely, electric conductors; electronic voltage regulators and electronic controls for solar battery charges; inverters used for electric power conversion; battery chargers and transformers; accumulators and batteries; solar energy conversion apparatus and instruments, namely, solar inverters; structural component parts and fittings of apparatus and instruments used for sola...