Base steel pile of factory/factory grounding grid'sea water circulating pipelinel underground foundation steel structure of transformer substation/minor-caliber pipeline cathodic protectionte chnology of open water system of main workshop

Cathodic protection technology for circulating pumpi axially split pump (centrifugal pump)condenser lexchanger (heat exchanger)

Multi-layer coating anti-corrosion technology for key positions of factory steel structure/heavy anri-corrosion coating protection technology

Jacket of oil production platform， sacrificial anode of oil and gas pipelines and impressed current protection technology

oiltank bottom plate and extine / Sacrificial anode of underground metal structures of petroleum plant and impressed current and regional cathodic protection technology

Effective multi-layer coating anti-corrosion technology of the margin plate at the bottom of vertical tank

Municipal water and gas pipeline sacrificial anode and impressed current cathodi cprotection technology

Sacrificial anode and impressed current cathodic protection technology of gas station

Buried steel pipeline drainage technology

Sacrificial anode of ships and impressed current cathodic protection technology

Long-term effective anti-corrosion coating protection technology for ships

Electrolytic copper aluminum anode anti-corrosion and anti-fouling dlevice technology

Sacrificialanode of steel pipe pile and impressed current cathodic protection

technology/impressed current cathodic protection technology of reinforced concrete structure

Multi-layer coating anti-corrosion technology of stecl pipe pile

Long-term effective heavy-duty coating protection technology of marine concrete structures