It is mainly applied to produce air-entrance brick. Autoclave, sulfur still: it is mainly applied to sulphidization and rubberizing in chemical industry and rubber industry; vacuum high-temperature sterilization, vacuum package and food sterilization in food service industry. The Autoclave can also be applied to straw steaming, sterilization and dehydration, dehydration and preservation of vegetables and plant food, vacuum high-temperature sterilization in other industries. The Autoclave can also be adopted for yarn steaming in textile industry.