Min. Order Reference FOB Price
1 Square Meter US$3.00-5.00 / Square Meter
Product Description
Product Description Nitrogen: Nitrogen is a chemical element; it has symbol N and atomic number 7. Nitrogen is a nonmetal and the lightest member of group 15 of the periodic table, often called the pnictogens. It is a common element in the universe, estimated at seventh in total abundance in the ...