We - EPG Group the bigge EPT Chain and agricultural gearbox factory in China with 5 various branches. For a lot more details: Mobile/whatsapp/telegram/Kakao us at: 0086~13083988828 13858117778 0571 88828 Common Furthermore, all our production methods are in compliance with ISO9002 expectations for a specialised supplier of a total selection of chains, sprockets, gears, equipment racks, V-belts, couplings and reducers， pto shaft, agricultural gearboxes....strands have an even number of pitches, pin links, and roller back links. A roller chain strand can be shortened by removing back links and lengthened by including complete or a 50 % hyperlinks (offset hyperlinks). The use of first equipment manufacturer’s (OEM) element numbers or trademarks , e.g. CASE® and John Deere® are for reference reasons only and for indicating item use and compatibility. Our organization and the detailed substitute elements contained herein are not sponsored, accepted, or made by the OEM.