Roller chain : 1. Specifications : A series : ISO / ANSI 35-160 , B series : DIN /ISO 04B-72B 2. All with Simplex / Duplex Chain Roller chain1. Specifications : A series : ISO / ANSI 35-160 , B series : DIN /ISO 04B-72B2. All with Simplex / Duplex / Triplex3. Colors available : Natural , Yellow, Blue , Gold , White , and Black , etc .4. Material : Carbon steel /40Mn , Stainless Steel5. Packing : ...