Bronchitis. Bronchitis is an inflammation of the lining of your bronchial tubes, which carry air to and from your lungs. People who have bronchitis often cough up thickened mucus, which can be discolored. Bronchitis may be either acute or chronic.
What does Centrebore mean? The âcenterboreâ of an alloy wheel is the size of the hole at the back of the wheel which the âhubâ fits into. To help the wheels to seat properly this hole needs to be an exact match to the size of the hub.
Hub centric refers to when the centerbore of a wheel fits perfectly over the mounting hub of the vehicle. Many factory wheels are designed with such close specifications that even a small amount of overspray from refinishing a wheel can cause the wheel not to mount.