Dacromet coating

It is made using chrome-free Dacromet technology, forming a uniform zinc-aluminum coating. The salt spray test can last for over 1000 hours. It has excellent corrosion resistance, heat resistance and no hydrogen embrittlement properties, and is particularly suitable for high-strength fasteners.

Passivation treatment

Through chemical passivation, a dense chromium oxide protective film is formed on the surface of stainless steel, significantly enhancing corrosion resistance and prolonging the service life of the product.

Ultrasonic cleaning

Utilizing a multi-chamber ultrasonic cleaning line, it thoroughly removes processing residues such as grease and metal shavings, achieving high cleanliness standards and meeting hygiene requirements for industries such as food and medical.

Oil boiling and waxing

Oil boiling treatment can form a rust-proof oil film on the surface, suitable for short-term storage and transportation protection. Waxing treatment provides more durable rust prevention protection and is suitable for long-term inventory or export products by sea transportation.

Petrochemical industry

Equipment such as oil refining units, chemical reactors, transportation pipelines, and heat exchangers are tightly connected. 2205 and 2507 duplex steel perform exceptionally well in media containing hydrogen sulfide and chloride ions; 904L is suitable for non-oxidizing acid environments such as sulfuric acid and phosphoric acid.

Marine engineering

Offshore oil platforms, seawater desalination devices, ship equipment, etc. 2507 super duplex steel has excellent resistance to pitting and crevice corrosion in seawater and is the preferred material for marine engineering fasteners.

Nuclear energy

Nuclear island equipment, conventional island equipment, flue gas desulfurization devices, etc. 660 precipitation hardening steel is used for high-temperature and high-pressure components; 321 stainless steel is used for pipeline systems. rail traffic

High-speed rail, subway vehicle and track infrastructure construction. The products possess high strength, fatigue resistance, vibration resistance and other characteristics, ensuring operational safety.

Environmental protection equipment

Equipment for desulfurization and denitrification of flue gas, sewage treatment, and waste incineration. 317L and 904L have excellent corrosion resistance in environments with chlorine-containing exhaust gas and acidic wastewater.