Three‑oil two‑cloth anti‑corrosion steel pipe is a medium‑grade fiberglass‑reinforced anti‑corrosion pipeline. Its anti‑corrosion structure is made up of three coats of epoxy coal‑tar pitch paint and two layers of glass‑fiber cloth, which are wrapped alternately.

The composite coating forms a dense waterproof protective layer on the pipe surface. It delivers reliable acid‑resistance, alkali‑resistance, salt‑water resistance and anti‑micro‑biological corrosion performance, and is suitable for soil environments with medium corrosion level.

Spiral‑welded, straight‑seam and seamless steel pipes are optional as base materials. We also provide light‑duty one‑cloth two‑oil and heavy‑duty three‑cloth four‑oil, five‑cloth seven‑oil anti‑corrosion solutions. Inner‑wall anti‑corrosion can be customized for double‑sided protection.

Every finished pipe is tested for coating thickness, adhesion and surface quality before delivery. It is widely applied to municipal sewer pipelines, general sewage‑drainage works, industrial wastewater conveyance and common buried underground pipeline projects.