CONTRACT PURCHASE ORDER In accordance with the contract between the Contractor and the Texas Comptroller of Public Accounts

         Agency to Invoice    
      TX DEPT OF TRANSPORTATION            60114     Purchase Order Number  3 0 3 4 6 4
      P.O. BOX 15426                       001                 Requisition  60114-0-25616
      AUSTIN             TX 78761
                                                                             03/4/10         1


         Destination if Different  
      TX DEPT OF TRANSPORTATION            60114
      7901 N. INTERREGIONAL HWY.           002
      AUSTIN TX 78753

THE STATE OF TEXAS IS EXEMPT FROM ALL FEDERAL EXCISE TAXES

STATE AND CITY SALES TAX EXEMPTION CERTIFICATE:
The State of Texas claims an exemption from
taxes under Texas Tax Code § 151.309(4),
for purchase of tangible personal property
described in this numbered order, purchased
from contractor and/or shipper listed here,
as this property is being secured for the
exclusive use of the State of Texas.

90172

         Contractor
 VID#: 1-75-166-6489-7000
 WALLACE W WADE SPECIALTY TIRES
 P O BOX 560906
 DALLAS TX 75356-0906

              FOR AGENCY USE ONLY:  14 399 26


                      **** ENTERED BY ALISA BLACKWELL  ****
              CONTACT AT AGENCY: ALISA BLACKWELL, PHONE: 512/832-7044
              VENDOR CONTACT: WALLACE W WADE, PHONE: 1 800 666-8973

                   Description                                  Quantity  Unit      Unit    Extended
                                                                                   Price      Amount

      060-87  DUAL TIRE PRESSURE EQUALIZATION VALVE

     89010-6  TXDOT SPECIFICATION NO. 060-87-89, DATED NOVEMBER        6  EA       39.58      237.48
              1998.  DUAL TIRE PRESSURE EQUALIZATION VALVE
              WHICH SHALL PROVIDE CONSTANT VISUAL MONITORING
              AND EQUALIZATION OF AIR PRESSURE IN DUAL TIRE
              ASSEMBLIES, AND PROTECT AGAINST SLOW LEAKS AND
              BLOW-OUTS BY ISOLATING EITHER TIRE IN THE EVENT
              OF A PRESSURE DROP OF 10 PSI OR GREATER.  UNIT
              SHALL MEET THE REQUIREMENTS OF THE REFERENCED
              TXDOT SPECIFICATION.
               ***QUANTITIES 1 - 99***, DUAL DYNAMICS,
              #DUAL DYNAMICS

              AGENCY REFERENCE NUMBER: DHT 146640

              AGENCY REFERENCE NUMBER: 125 P.S.I.

               THE  TEXAS  HAZARD  COMMUNICATION  ACT  (ARTICLE 5182B, VTCS)
               REQUIRES  CHEMICAL  MANUFACTURERS AND DISTRIBUTORS TO PROVIDE
               MATERIAL SAFETY DATA SHEETS  (MSDS'S) FOR HAZARDOUS MATERIALS
               SOLD.   PRODUCTS COVERED BY THIS ACT MUST BE ACCOMPANIED BY A
               MATERIAL SAFETY DATA SHEET AND SUCH PRODUCTS MUST BE LABELLED
               IN COMPLIANCE WITH THE LAW.

              DELIVERY IN  30 DAYS. *** PLUS FREIGHT ***

                                                                   TOTAL THIS ORDER          $237.48