... 4, Specification: Ordinary Mild Steel Link Chian: including short link chain, Medium link chain and Long link chain; Wire Diameter: 1/8", ... 7/16",1/2",5/8",3/4" DIN5685 A/C LINK CHAIN: Wire Diameter: 3mm,3.5mm,4mm,4. ... 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, ...