Sensor список импортных компаний из Нигер

we are looking for these probes if it is available we are waiting for a quote as soon as possible ELY/BR/500:Universal électrodes for electrolytic bridge 2 bottles of 250ml ELY/BR/503: électrodes for electrolytic bridge for potassium measurement 1 bottle of 250ml ELY/BR/503/N: électrodes for electrolytic bridge for nitrate measurement 1 bottle of 250ml K 800 DIN combined ionselective electrode F 800 DIN combined ionselective electrode WTW Ca 800 Din 106655

I am looking for a factory manufacturing Fuel it tank sensors thank you I speak French only