国精产品一区一区三区,97久久精品无码一区二区,欧美老妇大P毛茸茸,两根黑人粗大噗嗤噗嗤视频

 
????????? ??????????????????>>>>
??????316LVV????
316SS?????????
316LVV??????
316LVV?????????
??????316LVV??????
316SS??????
316LVV??????
316LVV?????????
316LVV?????
316SS?????????
316LVV??????
316LVV?????????
????????? ???...
????6*1С???????????&...
GB3087?????ˉ??-????...
   ?????λ?????? >> ????? >>  ????? >> ??????????????ι??16Mn???????п???????????????
  
???????
819848116
????????
??????????????ι??16Mn???????п???????????????
?橈????
???
????????
??????????0635-8884428
??????
?????
 
    ?? ? ? ??

????????????????ι???16Mn????????п????????????????

?????????????????????????????ˉ??????????????ˉ????????????????????

??????????????????????????????????ú????????????????????????????????????????????????? ???????????п??????? GB/T3091-1993 ??????п?紙???????????????????????ú????????????????????????????????????????????????????п?????ˉ????紙??????

??????????????

??????????????????????????ɡ?

????1?? ????????????????-????

????????????????????????????£???????????Σ???????Σ????????????????

????2?? ????????????????-???

????????????????????????????????????в?????????????????????????????????????????????????????????????????????棬??????????????????????

?????????????в???????HB????????????HRA??HRB??HRC???????????HV?????????

????3?? ????????????????-???

???????????????????????????????????????????μ??е???????????????????????????????????1??????????????????????????????

????4?? ????????????????-???????

???????????????????????????????????????????????????μ???????????????????????

????5?? ????????????????-???

???????????????????????????μ?????????????????λ???????????????????????÷??????????????????????е???????????????????????????????????????????????????????????????????????????????????????????????????????

??????ù??

????500??500??8~25 140??140??4~14

????135??135??4~14

????130??130??4~12

????450??450??8~25 120??120??4~12

????400??400??8~25 110??110??4~12

????350??350??8~25 100??100??4~12

????300??300??8~25 80??80??4~12

????280??280??8~25 60??60??4~12

????250??250??8~25 50??50??4~12

????220??220??8~25 40??40??4~10

????200??200??8~25 30??30??2~6

????180??180??7~20 20??20??2~4

????160??160??5~16

????150??150??5~14

????1???????GB6728-2002??????????????????

????2???????JISG3466-88??????????????????Χ?????



?????????????????????????????????????????????????????????????????????????????????????????С???????????????????????????????????????????????????????????,??????????????20#??45#??16MN??Q345??A/B/C/D/E????27SIMN??15CrMO??12Cr1MOV??10CrMO910??304??304L??316??316L??321??P11??P22??P91??T91.??й???GB8162-99?????GB8163-99????????????ù?????????GB3087-99??GB5310-85????????ˉ?ù??GB5312-8???ù??...
???????????0510-88264321??88223334 ???棺0510-88223334 ?????18921237777

  • ?????????? GCr15??и??|20#???????|45#??и??|??и?????

  • ?????????? ???ι?????ι???????????ι??Q345B?????????????
  • ??????????
  • ???????2272  ??????2010/8/19 ?????????? ???????

    ??????? | ????? | ?????? | ??ˉ????? | ??????? | ?????? | ?????? | ??????? | ???????? | ??????? | ????????   ?????   Sitemap
    ?????????316L?V????????316LVV????????316SS?????????????????316LVV?????????????????
    ?綽??0510-88264321??88223334?????棺0510-88223334???????13967282625??18921237777  ??????
    sitemap Copyright ® ???????????????? ???:??????????????????????·66??
    ????

    ??????

    • ???1 ??????????????
    • ?????18921237777