... pipelines in facility projects of petroleum, petrochemical industry, city gas, oil and gas storage and transportation, power, water supply, metallurgy, civil ... as prescribed in GB8923-88 Pre-paint Steel Surface Rust Grade and Rust-removal Grade, and it shall be dust-free.2.2 ... Primer in Plastic bottle. Polyethylene Tape & Synthetic Primer for oil gas water Steel Pipe Surface Anti corrosion Coating