... DIN763,DIN764,DIN766 and DIN5685 series a,DIN763 link chain: SIZE(MM):2.0 2.5 3 ... 13 2, Austrialia stardard,short link link chain,medium link chain ,long link chain and G70 link chain a,short link chain: SIZE(MM:6 8 ... 10 12 16 b,medium link chain: ... 3 8 10 13 3,KOREAN STANDARD LINK CHAIN a,short link chain: SIZE(MM) 3 4 6 7 ...