The oil pipeline uses X80 high-strength pipeline steel, which can withstand high pressures of over 12MPa, enabling long-distance, large-diameter crude oil transportation; while chemical equipment (such as reactors and heat exchangers) relies on duplex stainless steel (2205, 2507), which has excellent corrosion resistance in strong acid and strong alkali media, ensuring production safety.

The core components (gears, shafts) of heavy machinery (such as excavators and cranes) are made of alloy structural steel (40Cr, 20CrMnTi), which has been significantly improved in hardness and wear resistance after heat treatment such as quenching and tempering and carburizing; while the bed of general machine tools is made of gray cast iron (HT250), which has both rigidity and vibration damping to ensure machining accuracy.

The dams and gates are made of Q235 and Q345 structural steel, which are processed into thick plates by large rolling mills to ensure the water conservancy facilities' resistance to water pressure and deformation. The water transmission pipelines use ductile iron pipes, whose high strength and sealing performance enable long-distance, leak-free water transmission.

The gas pipeline uses PE anti-corrosion steel pipe, and the outer polyethylene coating (thickness ≥1.8mm) effectively isolates soil corrosion and ensures the safety of gas transmission; the supports of the urban integrated pipe gallery use hot-dip galvanized angle steel, which has a corrosion resistance of more than 30 years in the underground humid environment.