This part of Q/SY 29 stipulates the basic requirements for regional cathodic protection operation management.
This part is applicable to cathodic protection system operation management of petroleum, natural gas production enterprise, station, field and storage.
This part of Q/SY 29 stipulates the basic requirements for regional cathodic protection operation management.
This part is applicable to cathodic protection system operation management of petroleum, natural gas production enterprise, station, field and storage.