the pipe and valve of oil fields. equipment for oil and gas development

background barrels chemicalindustry commercial compressors cylinder drainage drilling engineering equipment exploration fossils fuel gas gasoline industrialequipment industry installation isolation natural naturalgas oil oilfields oilrefining petrochemical pipe pipelineengineering powergeneration pumps scienceandtechnology stainlesssteel steel structure temperature thermostat tube valve vivid water waterpiping whitemetal