1.Product Overview 

Prestressed corrugated pipes are a key material used in post-tensioned prestressed engineering to form the prestressing tendon ducts. They are 

pre-embedded in 

concrete, providing a channel for subsequent strand threading, tensioning, and grouting. We offer two main products: galvanized metal 

corrugated pipes and 

HDPE (plastic) corrugated pipes, to comprehensively meet the diverse needs of different engineering conditions regarding wear resistance, 

corrosion resistance, 

flexibility, and cost-effectiveness.

2.Product Comparison and Selection Guide

When choosing corrugated pipes, galvanized corrugated pipes and plastic corrugated pipes offer solutions for different engineering 

requirements. Galvanized 

corrugated pipes are manufactured using high-quality galvanized steel strips, and their core advantages lie in their extremely high rigidity 

and excellent wear 

resistance, effectively resisting deformation under pressure during construction and ensuring the stability of the duct shape. Their good 

high-temperature resistance 

makes them suitable for conventional industrial and bridge construction. If you prioritize ultimate corrosion resistance and easier construction, 

then HDPE (plastic) 

corrugated pipes are a wiser choice. Made of high-density polyethylene, it boasts excellent resistance to chloride salts, acids, and alkalis, and 

never rusts, making it 

particularly suitable for harsh environments such as cross-sea bridges and water conservancy projects. Its lightweight and flexible characteristics 

make it easier to lay 

complex curves, and heat fusion connections ensure perfect joint seals. Simply put, for most conventional and cost-sensitive projects, galvanized 

corrugated pipes 

are an economical and reliable choice; while for projects facing severe corrosion challenges or with extremely high requirements for structural 

durability, plastic 

corrugated pipes offer longer-lasting protection and superior life-cycle value.

3.Main Application Areas

Galvanized Corrugated Pipes: Large bridges, industrial plants, public buildings, railway sleepers, etc.

Plastic Corrugated Pipes:Cross-sea bridges, coastal buildings, water conservancy projects, sewage treatment plants, saline-alkali land projects, rock and soil anchoring, 

and other 

corrosive environments, as well as large-curvature beams with low requirements for the coefficient of friction in hole formation.