Buried Hot Oil Pipelines
Buried crude oil pipeline
BURIED PIPELINE
埋深管线
地下管道
埋地压力管道
埋地管线
埋地输油管道
管道掩埋
地下管线
埋地管道
埋设管线
地埋管
buried pipeline engineering
Direct-buried pipeline without compensation
Directly Buried Hot Water Heating Pipeline
Directly Buried Hot Water Heat-supply Pipeline
Directly Buried Hot-water Heat-supply Pipeline
directly buried hot-water piping
Directly Buried Pipeline
partially buried pipeline
prefabricated compound insulation directly-buried pipeline
Prefabricated Directly Buried Hot-water Heating Pipeline
straight buried pipeline