(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.
Benchtop sanders are one-of-a-kind sanding machines that are built to last and offer more power, and control for larger sanding projects. They are commonly used by both do-it-yourselfers and professionals and are commonly found in home workshops. Benchtop sanders are less portable than handheld sanders but they offer more power and more versatility. The most versatile sanders offer a belt and a disc built into a single sander. Higher grade sanders are a good investment if you want to work with larger pieces of material or need to complete a lot of sanding work.