Selected standards work
Practical engineering contribution.
- GB/T 51335-2018Technical Standard for Sound Barrier Structures
- SJG 57-2019Shenzhen Road Sound Barrier Design Guidelines
- T/CCES 6008-2025Road Sound Barriers
Discuss a project Company evidence
Founded in 2005, Zhongchi is a China-based provider of noise and vibration control solutions for railways, urban rail, municipal elevated roads, and highways.
Engineering a quieter world.Company profile
Zhongchi’s current public profile identifies research, engineering, manufacturing, and delivery capabilities supporting four core infrastructure sectors in China.
The international website retains date qualifiers for changing figures and does not present Chinese qualifications as automatic evidence of applicability in another jurisdiction.

Production network
The current official profile lists a 100,000 m² Shanghai production base and a 120,000 m² Hefei manufacturing base, for a combined footprint of 220,000 m².
Engineering authority
These records provide useful company context. Their relevance, scope, currency, and jurisdictional applicability should be confirmed for each project.
Selected standards work
Qualifications listed in supplied materials
Applicability should be confirmed for each project and jurisdiction.
International project desk
Share the jurisdiction, project stage, procurement context, and required evidence so the international team can respond appropriately.
Discuss a project