The core load-bearing component designed specifically for heavy-duty lifting is forged from high-strength alloy steel, which is wear-resistant, tensile resistant, and has strong toughness. It can withstand large loads and is not easily deformed. Precise interlocking of chain links, smooth transmission, suitable for equipment such as cranes, hoists, and hoists. It can vertically lift and horizontally drag heavy objects such as steel, machinery, and large goods. The surface is treated with rust prevention such as galvanizing/blackening, suitable for various indoor and outdoor scenarios, with diverse specifications (different pitch and diameter), and can be used with accessories such as shackles and hooks for safe and reliable use. It is a key load-bearing tool for industrial lifting operations.