roller chain,roller chain,roller chain,roller chain,roller chain,roller chain,roller chain,roller chain,roller chain ANSI 80 /DIN 16A-1 standard roller chain 1.material:40MN/A3 2.pitch:25. ... thickness:3.25mmANSI 80 /DIN 16A-1 standard roller chain 1.material:40MN/A32.pitch:25.4mm3.plate thickness ... chains: 420,428,520,525,530,630 (Racing Chains)7. Leaf chains: LH series8. Double pitch conveyor chains ...