... and corrosion ano is used inthe industries of petroleum,chemicalengineering and. Electric pwer as well as boilerHigh ... 80Temperature-resistantseamless steel pipefar high-pressure boilerSeamless pipes for petroleum 20, 12CrMo,15CrMo, Cr5Mo, Cr9Mo GB9948-8810- ... or black painting anti-corrosion or 3PEApplication:Natural gas, petroleum, chemical industry, electric power, metallurgy thermodynamic fields, ...