1、Wenzhou City Railway Line S1 Sound Barrier Project
Location: Wenzhou, Zhejiang Province
Product Type: Fully-Enclosed, Semi-Enclosed, and Insertion-Panel Sound Barriers
Project Highlights: Combining light rail operational needs with heavy rail construction standards and high-speed rail quality. The project pioneered the co-installation of overhead catenary systems and sound barriers in China's regional railway network.

2、Harbin-Qiqihar Passenger Dedicated Line Framed Sound Barrier Project
Location: Harbin, Heilongjiang Province
Product Type: Fully-Enclosed, Externally-Clad Framed Sound Barrier
Project Highlights: The first externally-clad sound barrier in a high-altitude cold region, withstanding annual temperature differentials exceeding 70°C. Pioneered the semi-enclosed externally-clad design for high-speed railways. The project obtained the Scientific & Technological Achievement Appraisal Certificate in 2020 and has demonstrated maintenance-free operation for a decade.
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