Adopted one-piece casting process, spraying and galvanized coating treatment, the hook is waterproof and not easy to rust. APPLICATIONS]: The optimal multi-purpose hook for a wide range of heavy lifting needs - from factory ceilings to shipyards and rugged construction sites Strong Load Bearing ]Ringing swivel hook with 11023 lbs (5T) working load limit. It can be used in factory lifting, port transportation, construction... 360° FREE ROTATION - The hook also has a grade of 80,which means that it has enhanced tensile strength and increased resistance toabrasion. This makes it ideal for use in applications where it will be subjected to heavy loads, wear and tear. TOP QUALITY - Made of high-quality alloy steel reinforcement and thickening, the swivel hook is heat-treated to ensure strength and toughness, making it more durable. 3 Ton Swivel Lifting Hook Heavy Duty, WENHUALI Round Rotating Hook with Safety Latch, High Quality Alloy Steel Resistant Corrosion for Lifting Chains Port Transportation Factory 15Ton Swivel Lifting Hook Heavy Duty Round Rotating Hook With Safety ACXFOND 5 Ton Swivel Lifting Hook Heavy Duty Locking Swivel Hook 3/4