Specifications include, but are not limited to: Tag trailer, Tandem axle, dual wheel, eight (8) pneumatic tires, for the supported mounting of a single or joined poly tank(s). The ability to transport 40,000 lbs. minimum load capacity at a highway speed of 55 M.P.H. The trailer frame, tongue, crossmembers, tank supports, etc. shall be fabricated then coated with hot dipped galvanizing material, to provide extended life while exposed to corrosive chemicals in winter maintenance operations. The axles, tires, wheels are exempt from this requirement. Main beams shall be wide flange beams pierced to allow full through crossmember installation. All frame members shall be 50,000 psi. minimum steel mainrails from front to drawbar to rear of trailer. Main beams shall be approximately 14" X 22 lbs. per foot wide flange beam minimum. Platform height dimension is critical to maintain the tipping balance of the trailer. Trailers considered must have loaded platform height of approximately 38" The tank platform shall be constructed of heavy formed or structural channel spaced to provide full support to the underside of the tank(s).