On my 10mm chain is stamped HC IT, what does this mean?
Have 50m 10mm chain and wanna add another 40m but have no glue what manuafacturer, grade etc. the existing chain is. From measuring its an 10mm ISO 4565 chain and the lofrans
chain nut is stamped diameter 10, R30 and 3/8 H.T
Itís pretty new and surface looks still very good.