MOSTRO can provide Alum. circle and PTFE Alum. circle with different diameter and thickness. As we know the Alum. Circle material is widely used in the cookware market. If the quantity of the production is large, we will use the auto production line If the quantity is low like 100 or 1000 pcs, the automatic line mold change requires extra time ,so we will use the manual way If you need, please feel free to contact us. INDIA OFFICE: Rishi Pradhan sales@mostro.cn +85 27278869 Marketing Office in India: G-20, World Trade Centre, Babar Road, Connaught Place, New Delhi-11000 CHINA OFFICE: MOSTRO Intelligent Machinery Co., Limited:  www.mostro.cn we chat/WhatsApp/ cell: +86 (13902892110) skype: Timson Guan E-mail: timson@imostro.com        ben@imostro.com        linda@imostro.com        crystal@imostro.com        michelle@imostro.com        Jacky@imostro.com