glavni
Instrument i metar
YZS-530A tɛ̈ɛ̈r tɛ̈ɛ̈r tɛ̈ɛ̈r tɛ̈ɛ̈r tɛ̈ɛ̈r
YZS-520A Portable Turbidity Chromometer
YSD-500D/T Colour Gauge
YSD-500B Portable Chromometer
Uspješna operacija!