Double sided gas diffusion layer  is a carbon cloth gas diffusion layer (GDL) with a carbon micro porous layer on both sides. GDLDS has been engineered to have state-of-the-art performance over a wide range of operating conditions. The thickness of this GDL carbon cloth is about 385 um.Gas Diffusion Layers (GDL) are key components of the membrane electrode assembly of the polymer electrolyte membrane fuel cell (PEMFC).