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      1.value engineering
     ûѴ͹ѡѧҹصˡ觷 ෤Ԥǡس
      س سǷ ԡ
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      2.кѴҡ
     Ἱҹ͹ѡѧҹͧ Ѳѧҹ << download >>
   
      3.෤ԤõǨѧҹ俿
     ෤ԤõǨ ѧҹ俿 .. ͺ ·ͧ << download >>
 
      4.èѴþѧҹ
     Ѩ·ռšзѺç͹ѡѧҹ Ѳѧҹ << download >>
 
      5.ͧǡѺѧҹ
     ͧǡѺѧҹ Ѳѧҹ << download >>
  
      6.... ͹ѡѧҹ
     Ҫɮա зǧ͡ ...͹ѡѧҹ ..2535      ѺҢͧҤäǺ/çҹǺ << download >>
  
      7. << download >>
 
      8.кʧҧ << download >>
 
      9.кѺҡ << download >>
 
      10.෤ԤõǨѧҹ俿٧شСûѺاҵǻСͺѧ俿 << download >>