... 1.material:q195 , q235 2.grade:g30 3.surface:galvanized 4.automatic machine made short link chain with galvanized1. material:carbon ... short/long link chain: 2 ,2.5 , 3 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 6.5 , 7 , 8 , ... , 3213. Din763 link chain: 2, 2.5 , 3 , 3.5 , 4 , 4.5 , 5 , 5.5 , 6 , 7 , 8 , 8.5 , ... , 18 , 19 , 20 , 22 , 25 , 28 , 3214. DIN764 link chain: 4 , 5 , 6 , 8 , 10 , 12 , 13 , 14 , 16 , 18 , ...