https://www.tiantiebuilding.com/products/viscous-damper.html
Seismic dampers is a kind of dampers in buildings which is composed of high strength metal cylinder, piston, guide rod, sealing element and viscous damping fluid.
Elliot Jensen and Elliot Fintry have a lot in common. They share the same name, the same house, the same school, oh and they hate each other but, as they will quickly learn, there is a fine line between love and hate.