Original document(9 pages)  中文版
    The present pressure cooker is made of a casting ferroalloy which combines the characteristics of nodular cast iron, compacted graphite cast iron, melleable iron and contains some trace elements good for man's health. In the present invention, special technology is used, so the cooker has good performances in toughness and other mechanical properties.
Application Number
申请号		 89105788 Application Date
申请日		 1989.11.16
Title 名称 Hygienic pressure cooker and its manufacture
Publication Number
公开号		 1051665 Publication Date
公开日		 1991.05.29
Approval Pub. Date Granted Pub. Date
International Classification 分类号 A47J27/08,C22C37/04
Applicant(s) Name
申请人		 Liu Rong
Address 地址
Inventor(s) Name 发明人
Attorney & Agent 代理人 PENG YANGMIN

  
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