... :high speed,long life,stocks 4.NBR Leaf Chain BL serious precision leaf chains Leaf Chain is the most simple of steel ... They are suitable for hanging, balancing or motion transmitting applications. Leaf chains are often used as counterweight chains for machine tools ... . Besides chromium is not used, so it is environmentally safe. Leaf chain(Bl series) LH2422, LH2423, LH2434, LH2444, LH2488, LH2466, ...