The D275 track chain is forged from top - grade special alloys. The track chain links are precisely machined, ensuring a precise and tight engagement. It has amazing fatigue resistance, enabling stable power transmission under extreme heavy - load working conditions. This ensures the long - term and reliable operation of the equipment and greatly improves the efficiency of engineering operations.We manufacture different machine models track rollers and can offer customized products. Follow us,you will get the items what you request.