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> PSL2???? L360N?????????ù??

PSL2???? L360N?????????ù??

PSL2???? L360N?????????ù??


??????????????????PSL2???? L360N?????????ù????????????360????N?????????????????й???GB/T9711-2001 ?е?PSL2????????N?????? L360?????????ù???????PSL1?????????????????????????????????????????????????в??PSL2???? L360N?????????ù?????????????????????????PSL2???? L360N?????????ù?????????????????600??????????????????????????????????????????????????????PSL2???? L360N?????????ù?????????????????????????????????????????????????????????????????
  ?????????PSL2???? L360N?????????ù????????????????????????,???????е???????????????????X52????

???????????

L245N/BN

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L290N/X42N

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L320N/X46N 

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L360N/X52N

??

L390/X56N 

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L415N/X60N

??

L245M/BM

??

L290M/X42M

??

L420M/X46M 

??

L360M/X52M

??

L390M/X56M

??

L415M/X60M

??

L450M/X65M

??

L485M/X70M

??

L555M/X80M

??????????

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

API 5L PSL2

??涨??


???????????

L245N/BN

??

L290N/X42N

??

L320N/X46N 

??

L360N/X52N

??

L390/X56N 

??

L415N/X60N

??

L245M/BM

??

L290M/X42M

??

L420M/X46M 

??

L360M/X52M

??

L390M/X56M

??

L415M/X60M

??

L450M/X65M

??

L485M/X70M

??

L555M/X80M

??????????

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

API 5L PSL2

??涨??



??????????????????2015???°?????
?????????????????????PPSL1??PSL2??????
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