... requirementSurface TreatmentShot blasted, rust-proof black or blue oilApplicationPetroleum, chemical, power, gas, metallurgy, shipbuilding, construction, etcDelivery Time20 days after the ... available according to your drawing.2.Anti-corrosion and high-temperature resistant with black painting3.All the production process ... let me know. XXS carbon steel pipe cap for high quality ASTM A234 WPB (CHINA)