sigh007 发表于 2012-3-21 18:57:41

MIL-HDBK-304C


                   MIL-HDBK-304C, DEPARTMENT OF DEFENSE HANDBOOK PACKAGE CUSHIONING DESIGN (1 JUN 1997).This handbook is for guidance only. This handbook cannot be cited as a requirement. If it is, the contractor does not have to comply. The information in this handbook applies chiefly to conventional cushioning materials. These materials include polyurethane foam, foamed polystyrene, and foamed polyethylene.         
         

wzg_1969 发表于 2015-9-28 16:28:12

骗子，啥也没有！！！！
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