📁 Contractors

Last updated：2026-10-25　·　Source: Timway directory (since 1997)　·　Ranking & editorial method

Subcategories

Specializes in pipelines, geotechnical drainage, and artificial lake leak-proof membranes.

Concrete cutting, drilling, reinforcement, and demolition services.

Scaffolding工程.

Offers hydrographic, geodetic, topographic, and cadastral surveying services.

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