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.
The offset of a wheel is the distance from the hub mounting surface to the center line of the wheel. The wheel offset is measured in millimeters and results in a positive, negative, or zero offset. Positive offset is when the hub mounting surface is toward the front or wheel side of the wheel. It is common to find a positive offset in newer and front wheel drive vehicles. Negative offset is when the hub mounting surface is toward the back or brake side of the wheels centerline. A negative offset wheel usually has a deep lip Zero offset The hub mounting surface is even with the centerline of the wheel.