D(80) Step Chain Roller for Sigma Escalator 1.Size:D(80) 2.Step roller, chain roller 3.Suitable for Sigma escalator 4.OEM D(80) Step Chain Roller for Sigma Escalator1. Professional service2. Easily to order3. Quickly delivered4. Durable and reliable5. Suitable for SIGMA, KONE, SCHINDLER, SELCOM escalator Supply Elevator & Escalator Spare PartsEscalator Parts: Cladding, Chain Guard, Handrail, ...