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lifting chain natural color

2025-09-10

rizhi

The original color of the lifting chain: The process principle is that after heat treatment (quenching + tempering), only surface cleaning is carried out without any anti-corrosion treatment. Appearance: The metal's natural color (usually gray-black or dark gray, which is the color of the oxide layer after heat treatment). Advantages: Low cost; no risk of coating peeling off, convenient for checking material surface defects. Disadvantages: Prone to rust, must be properly coated with anti-rust lubricant for maintenance after use. Applicable scenarios: Usually used for further processing (such as adding protective layers when assembled into slings) or for short-term, temporary occasions where users will maintain them themselves.