PREMIUM MATERIAL CONSTRUCTION: This plate clamp is made of high-quality low-carbon alloy steel with a durable plastic spray coating to ensure durability and reliability in various lifting tasks. Enhanced Safety Features: Features a fall-proof safety plug that must be removed before use to allow the chain to be adjusted to the desired position before safely reinserting the plug to ensure safe operation. Safety spring mechanism: Equipped with a spring device that can be locked tightly, the clamp ensures a firm grip on the sheet, greatly reducing the risk of slipping during lifting. Versatile Adjustability: The opening size is clearly marked on the side, allowing for easy and convenient adjustment to accommodate different sized panels with ease. WIDE APPLICATION: This clamp is suitable for a variety of lifting needs and is designed to safely handle plates of different sizes, making it a versatile tool for both professional and personal use., Manufacturer: ZOCWJK