Structure: Welded Chain Function: Drag Chain Material: Alloy Standard or Nonstandard: Standard Material: Alloy Steel Name: 6mm black alloy steel grade 80 lifting chain Manufacturers Surface treatment: Self-color, polishing, black, plastic coating, hot-dip, zinc Plated, etc. Quality Grade: 80 Size: 6mm-24mm Length: As required Safety Factor: 4: 1 OEM: Acceptable Standard: EN818-2 Show More