Since gamma-ray bursts(GRBs) have been first known to science societites in 1973. many scientists are involved in their studies. Observations of GRB afterglows provide us with much information on the environment in which the observed GRBs are born. Study of GRB afterglows deals with longer timescale emissions in lower energy bands (e. https://thehookahlabes.shop/product-category/hookah-tongs/