WELCOME TO DAMIPOLYCHEM. 1  We are providing customized products by developing fine chemical products based on silicone, such as silane, silane coupling agent, silicone intermediate, silicone compound, UV stabilizer of new concept, industrial primer, etc.ELCOME TO DAMIPOLYCHEM. 1  We are providing customized products by developing fine chemical products based on silicone, such as silane, silane coupling agent, silicone intermediate, silicone compound, UV stabilizer of new concept, industrial primer, etc.
Tracheal collapse is a chronic, progressive, irreversible disease of the trachea, or windpipe, and lower airways (mainstem bronchi collapse).The trachea is a flexible tube and, similar to a vacuum cleaner hose. It has small rings of cartilage that help keep the airway open when the dog is breathing, moving or coughing.racheal collapse is a chronic, progressive, irreversible disease of the trachea, or windpipe, and lower airways (mainstem bronchi collapse).
The trachea, colloquially called the windpipe, is a tube that connects the pharynx and larynx to the lungs, allowing the passage of air, and so is present in almost all air-breathing animals with lungs.Only in the lungfish, where the lung is connected to the pharynx and the larynx, is it absent.he epiglottis closes the opening to the larynx during swallowing. The trachea develops in the second month of development. It is lined with an epithelium that has goblet cells which produce protective mucins. An inflammatory condition, also involving the larynx and bronchi, called croup can result in a barking cough.