The Y4Q/J4Q series of lead core seismic isolation rubber bearings is a series of seismic isolation bridge components developed in accordance with the current transportation industry standards "JT/T 822-2011 Highway Bridge Lead Core Seismic Isolation Rubber Bearings", national standards "GB 20688.2-2006 Rubber Bearings Part 2: Bridge Seismic Isolation Rubber Bearings", and relevant industry specifications, while referring to European standards. It is suitable for various highways and municipal bridges in seismic intensity zones of 8 degrees and below.

Lead core isolation rubber bearings Y4Q-J4Q

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