Taizhou Xinfeng Rigging specializes in manufacturing Thickened Ring Flat Slings that meet the JB/T 8521 national standard. Made from high-strength industrial polyester filament (PES), these ropes are crafted using multi-layer thickened weaving, high-temperature setting, and reinforced eyelet stitching processes. With a safety factor consistently above 6:1, their robust structure and exceptional toughness provide a solid safety barrier for heavy-duty lifting operations.