28269010 -- Dipotassium hexafluorozirconate
85182100 -- Single loudspeakers, mounted in their enclosures
91061000 - Time-registers; time-recorders
85021340 --- Of an output exceeding 750?kVA but not exceeding 2000?kVA
28342920 --- Of barium; of beryllium; of cadmium; of cobalt; of nickel; of lead