Spectrometer instruments like Spectrophotometer, AAS, ICP, Direct-read Spectrometer and etc.,hd sex padam

inocent sex,big breasts,xxx p0rn

  • xxxsexmovie

    Fluorescence spectrophotometer(spectrofluorometer), suitable for UV or visual spectrum fluorescence quantitative determination ,mom hd xxx

  • porn free

    This instrument is operated by a PC. It is a powerful tool to analyze the sample structure in many fields such as petroleum, chemical engineering and pharmaceutical.,cindy shine

  • pornstar 1

    बीएफ सील पैक,AAS, Atomic Absorption Spectrophotometer

  • collage xxx

    Conductively Coupled Plasma Emission Spectrometer is mainly used for the quantification analysis of metal elements and some non-metallic elements in the liquid sample.,hot youporn

  • virgins sex

    SP-OF2000 fiber optic spectrometer using global best Richardson blazed grating, sensitivity up to 20%, stray light reduces 50%. Meanwhile, the use of two shining technology, equipped with UV-sensitive CCD, it expands effective band to 200~1100nm for the first time. ,www red tub

Showing 1 - 9 of 9 items
Showing 1 - 9 of 9 items