In this research. the concentration of radon gas has been calculated in the classrooms of schools in Diyala Governorate by using the nuclear track detector (CR-39). which was one of the organic solid-state nuclear detectors (SSNTDs). After calculating the radon gas concentration. https://www.shoptracepaper.com/product-category/hand-blown-spoons/
Hand Blown Spoons
Internet 4 hours ago cphgbdxl2mnn6Web Directory Categories
Web Directory Search
New Site Listings