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Our bridge deck expansion joints cover modular, strip and plate types to match different bridge displacement demands from 40mm to 800mm. Main frames are made of Q235 hot-rolled deformed steel with galvanized anti-corrosion treatment, avoiding rust under long-term rain and saline fog erosion. The matched EPDM rubber sealing strip features superior elasticity and aging resistance, blocking sewage, sediment and road deicing salt from infiltrating bridge bearings and abutments. It can bear heavy-load truck impact and buffer structural vibration caused by frequent vehicle passing. Pre-assembled before delivery, the joint requires simple on-site anchoring and welding, cutting construction downtime. Tested for -40℃ to 70℃ temperature cycling, it maintains stable flexibility without deformation or cracking, with a service lifespan over 25 years for highway, overpass and municipal road bridges
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