Anti-corrosion steel pipe 1.material: Q235,Q345 2.Thickness ... 4. Thickness:2.5-75mmPE coating steel pipe SpecificationsChina 3PE steel pipe 1.standard:SY/T0413-2002 2. ... request 3. Outer Diameter:32-630mm Product3PE steel pipeBrandZEJIANStandardGB,JIS,DIN,ASME,API 5L,API 5CT ... ISO9001:2000 strictly nominaldiameter of steel pipe DNepoxy coatingadhesive layer (mm)min thickness of anti-corrosion layer (mm ...