Modern biogas factory in Bremen, Germany Rusty steel pipe with heat insulation on construction site Rusty steel pipe with heat insulation on construction site Rusty steel pipe with heat insulation on construction site Liquid plunger pump positive displacement type to transfer liquid from vessel to sea line pipe at offshore oil and gas wellhead remote platform. Renewing corrosion damages on arch and pillars of concrete bridge Maslenica on A1 highway in Croatia Biogasanlage - biogas plant 54 Bio Gas Installation on a farm processing Cow Dung A worker with a gas burner wraps the equipment in a film for trnasport in an open way. Construction worker spraying paint to steel pipe to prevent the rust on the surface Sprinkler heads sprayers of fire extinguishing systems at the exhibition Industrial fire sprinkler station and alarm system Worker painting steel tube with paint brush selective focus on hand Closeup hand of person holding abundance soil with young plant in hand for agriculture or planting peach nature concept. Worker Painting Metal Coat Protect from Rust on the Metal Structure.