The Lasso seismic isolation pot rubber bearing consists of an upper plate, a lower plate, an intermediate steel plate, a pressure-bearing rubber plate, a copper sealing ring, a rubber sealing ring, a polytetrafluoroethylene plate, an SF-1B composite plate, a stainless steel plate, and high-strength steel cables, among others. Its structural feature is the use of high-strength steel cables (steel strands, high-strength wire bundles) to restrict the upper and lower plates within the effective displacement range of the bearing.

The QZ series spherical bearings strictly adhere to the national standard GB/T 17955-2019 "Bridge Spherical Bearings", while also referencing the European standard "Structural Bearings" Part 7 "Spherical and Cylindrical PTFE Bearings" (EN 1337-7) and Part 2 "Sliding Elements" (EN 1337-2), as well as the British standard BS 5400 "Steel Bridges, Concrete Bridges and Composite Bridges" Part 9 "Bridge Bearings". They feature flexible rotation and large angles, making them particularly suitable for wide bridges, curved bridges, ramp bridges, skew bridges, and large-span bridges.