The A/B series offers a wide array of stainless steel chains. Under the A series, the stainless steel short pitch precision roller chain is characterized by its various chain numbers ranging from 25SS-1 to 120SS-1. The B series features a stainless steel short pitch precision roller that are available in chain numbers of 05BSS-1 to 24BSS-1. Other version include stainless steel hollow pin chain, and pin chains with double pitch.