The document lists technical specifications for two items, T1 and T2, including their tare weight, gross weight, and tare equipment number. T1 has a tare weight of 590kg, gross weight of 645kg, and tare equipment number of 11. T2 has a tare weight of 3500kg or 4000kg, gross weights of 3500kg or 4000kg, and tare equipment numbers of 91, 102, or 103.