(Redirected from Emphysema) Chronic obstructive pulmonary disease (COPD) is a type of obstructive lung disease characterized by long-term poor airflow. The main symptoms include shortness of breath and cough with sputum production. COPD is a progressive disease, meaning it typically worsens over time.
(January 2010). A belt sander is a sander used in shaping and finishing wood and other materials. It consists of an electric motor that turns a pair of drums on which a continuous loop of sandpaper is mounted. Belt sanders may be handheld and moved over the material, or stationary (fixed), where the material is moved to the sanding belt. Stationary belt sanders are sometimes mounted on a work bench, in which case they are called bench sanders.
1 The sander smooths it and sends it out the other side. 2  Good for finishing large surfaces. 3  Wide-belt sander: A large sander similar in concept to a planer, but much larger. 4  Uses a large sanding belt head instead of a planer's shaping head, and requires air from a separate source to tension the belt.