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Polyethylene pipes drain water from sky train tracks. HDPE pipeline drainage. Black PE tube was installed on a building wall. Polyethylene pipe network. Pipe construction. Water drainage HDPE pipe.
Industrial air duct ventilation equipment, 3D illustration
Isometric Transformer . Electric Energy Factory Distribution Chain. Isolated set Icon Energy Substation. High-Voltage Power Station.
Isometric Transformer . Electric Energy Factory Distribution Chain. Isolated set Icon Energy Substation. High-Voltage Power Station.
Excavator dig trench on construction site. Laying external sewer pipes in trench. Sewage drainage for building. Civil infrastructure pipe, water lines, sanitary storm. Crane on building construction.

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