Specifications include, but are not limited to: Tire casing inspection shall be performed with either electronic, holographic, x-ray or ultrasonic equipment. Work shall be performed by the vendor, and all rubber used in the retreading process shall be of the same manufacturer as stated in the bid. Bidders shall provide a list of the type of equipment used in their facility for tire casing inspection, within three days of receiving a request. Retreaded tires sold to the City of Milwaukee shall be manufactured from acceptable tire casings provided by the City and others. Tire repairs shall include, but not be limited to nail holes. Bidders shall provide a listing of the prices charged for tire repairs within three days of receiving a request. Tire casings that are found to be unacceptable during inspection shall be returned to the City of Milwaukee for disposal.