DIN 762-1
DIN 762-1
Round steel link chains - Round steel link chains, pitch 5d, for chain conveyors - Part 1: Grade 3, quenched and temperedstandard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2015
standard by Deutsches Institut Fur Normung E.V. (German National Standard), 06/01/2015