... links are closed in a third bending process. Technical Data Wire diameter:3-6mm,6-11mm,11-16mm,13-18mm,16 ... -22mm Inside link length (pitch):Max 130 mm;Wire infeed length:Max 100 mm;Tensile strength:Max 500Mpa;Output ... ./min, We also supply chain welding machine, chain calibrate machine, chain tensile test machine and chain heat treatment machine etc. as a one-stop service ...