<legend id='1hl4y'><style id='1hl4y'><dir id='1hl4y'><q id='1hl4y'></q></dir></style></legend>
?-??e?????D?T1???,13????
?-??e?????D?T1???,13????
 
 
13????
13????
????????
??????1???
???12?
????'
??11a'
12??????????
2?t?????????
11a2????11a??
װ?2??????'
?????12?
 
 3 > 2??1? > 13????
13????  
 

?1??1?13??????a??1?????y3???D????????'?a??? ?? , 2???D?????????????D???D??DD12????????-????3???????y?1????13??????13?????-1y?a???2????1?a??'| , 1???????y?D???? , ?3?????1|D???????? " y?D " ?????????????????y??13?????-1y?????|o????D?'|????'?2????''??????????????2?????o?|??


13????????a: 
??D?o? ,??1|?? ;?1'?Da ,????? ;   
???2? ,'?a??? ;  ?T???T? ,2?D??? ;   
 ????? ,?1?21?? ; ?1? , ?-?????. 
13???? ?? ??D?????? ????D?'  y?D
?1-???  >=500Mpa ?     ?  0.91
???T??  15%~20% 3    ?  3??6??10??19??22mm
?    ?? 160???? ???D? ?T
?     ?? 590???? ?1???D? ??????????
  ?:???Y??D?22??????????o3?1?????2?

?-??e?????D?T1???ר?2?-a?o???????????????????????12?????'2???12?????????1?3????13?????????????1?3??12?,13????????e?????????????1????????1?3??12???



?1????o13????,13????,12??????????

??3?D?o?-?13???? ????13???? ?-??13???? ???-13???????? ?o?13????3? ??...
???y?o103315  ??????o2019/1/19 ??'?'?3?? ???????  
??????
1?????3??o
a????o *
????Y?o
a??????o *
Email?o
???DT?????Y
  
?1?2??o
3???????13????
?????13????
?????????????
??????'????-13????
?D?2??o
????????1???
????????
??11a'
13????
?1????o
   ?????????2?y???????3?????2?    ?????????2??????????a?????-?
   ??????????????1????o???    ?????????a2?'?3?a??2???
   ?|?T?T??1|?????D??D?    3?????????????21????
   ?????????????DD???1??o?    ???????????1-??????'???
   ?Y????T??????2?T?????D    ????????1???????23??

    <tfoot id='1hl4y'></tfoot>

    • <tbody id='1hl4y'></tbody>

       
        ???? | ?????? | ??11?5???? ??11?5?????? ??11?5?????? ??11?5???? ??11?5???? ??11?5???? ??11?5???? ??11?5????
    • <i id='1hl4y'><tr id='1hl4y'><dt id='1hl4y'><q id='1hl4y'><span id='1hl4y'><b id='1hl4y'><form id='1hl4y'><ins id='1hl4y'></ins><ul id='1hl4y'></ul><sub id='1hl4y'></sub></form><legend id='1hl4y'></legend><bdo id='1hl4y'><pre id='1hl4y'><center id='1hl4y'></center></pre></bdo></b><th id='1hl4y'></th></span></q></dt></tr></i><div id='1hl4y'><tfoot id='1hl4y'></tfoot><dl id='1hl4y'><fieldset id='1hl4y'></fieldset></dl></div>

          <bdo id='1hl4y'></bdo><ul id='1hl4y'></ul>

          1. <li id='1hl4y'><abbr id='1hl4y'></abbr></li>