... for large pitch chains 3 High-quality alloy steel 4 Automatic and CNC lathes 1. We produce F type flanged roller for ... large-rollers, F-rollers, bushes, pins, etc.) and machinery parts.4. Excepted chain machines, we also have automatic lathes, bench lathes ... , grilling head lathes, grinding machines, CNC machines, etc. F type flanged roller for conveyor chains