... Specification: Ordinary Mild Steel Link Chian: including short link chain, Medium link chain and Long link chain; Wire Diameter: 1/8", 5 ... 5.5mm,6mm,7mm to 13mm DIN763 Long link chain: Wire Diameter: 3mm,3.5mm,4mm,4.5mm, ... 5mm,5.5mm,6mm,7mm to 25mm DIN764 LINK CHAIN: Wire Diameter: 4mm,5mm,6mm,8mm,10mm,12mm, ... 13mm,14mm,16mm,18mm to 25mm DIN766 LINK CHAIN: Wire Diameter: 3mm, 4mm,5mm,6mm,7mm,8mm, ...