The support is made of a 2~4mm thick Teflon plate (F4) on the GJZ series support according to the plane size of the support. In addition to the function of the GJZ support, due to the use of the (F4) plate and The low friction coefficient between the stainless steel plates at the bottom of the beam makes the horizontal displacement of the upper structure not limited by the shear deformation of the support itself, reducing the shearing force, and can also be used for sliding heavy objects, such as bridge continuous beam pushing construction.