?????????ˉ?? ????32*3??ˉ?? 20G?????ˉ?????
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?????? |
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???? |
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20G |
GB5310-2008 |
25*2-2.5-3 |
???? |
???? |
??ˉ?? |
20G |
GB5310-2008 |
32*2-2.5-3-4 |
???? |
???? |
??ˉ?? |
20G |
GB5310-2008 |
38-45*3-3.5-4-5 |
???? |
???? |
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20G |
GB5310-2008 |
57-57*3-3.5-4-4.5 |
???? |
???? |
??ˉ?? |
20G |
GB5310-2008 |
60*3-3.5-4-5 |
???? |
???? |
??ˉ?? |
20G |
GB5310-2008 |
76*4-4.5-5-6 |
???? |
???? |
??ˉ?? |
20G |
GB5310-2008 |
89-102*4.5-5-6-8 |
???? |
???? |
??ˉ?? |
20G |
GB5310-2008 |
108*4.5-5-6-8 |
???? |
???? |
??ˉ?? |
20G |
GB5310-2008 |
127*4.5-5-6-8 |
???? |
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20G?????(Seamless Steel Tube)?????????п???楨?????н?????????????????п???棬?????????????????????? ?????????????????????????ú????????Щ????????????????????????????????????俹?????????????????????????y??????????????????????е???????????????????????????г??????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????????£????????????ι???????????????塣??????????????????????????????????????????????????????????????? ??????????????????????????????????????????????£???????緽?????ι?????????Щ??????????????????÷??????ι?????????????????????????????????????
?????????????????????????????????????????????????????????????????????????????????????????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??...
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