Pressure cookers are divided into: 1. aluminum pressure cookers. 2. stainless steel pressure cookers. There is a difference in the process of producing stainless steel pressure cooker and aluminum pressure cooker, such as: 1. The power of the stretching machine for producing stainless steel pressure cookers is higher than that of aluminum pressure cookers. 2. The material used in pressure cookers is thicker and stronger than that of ordinary cookers, because pressure cookers withstand strong pressure. And we can also provide different styles of pressure cooker because people from different countries prefer different styles . 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