Specifications: 1) Parameter & quota: common standard 2) Sizes: 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 16, 18, 19, 20, 22, 23mm Features: 1) Material: low carbon steel 2) Finish: electro-galvanized, hot dip galvanized, self-clone Packing: Drum, case, plastic red box, gunny bag and then pallet DIN766 Link Chain