PLease kindly quote us valve as following detial:-1. Roller chain no. 28B-3Rx10ft 1box2. Roller chain no. 24B-1Rx10ft 30box3. Roller chain no. 16B-3Rx10ft 1 box4. Chain connector ISO 28B-3 1pc5. Chain connector ISO 24B-1 30pc 6. Chain connector ISO 16B-3 1pc Give details and leaflets Hope to hear from you soon.