ในบางรายที่มีผิวบอบบาง อาจเกิดผิวไหม้ได้ แต่มีโอกาสน้อยมาก NIST Calibrations The manufacturing unit performs calibrations for the right wavelength choice of your spectrometer working with NIST traceable calibration lamps (calibration assistance like IRRAD-CAL need to be purchased with spectrometer and suitable measurement add-ons) Quick shipping and delivery: most system might be cali... https://everettv641fik1.wikiusnews.com/user