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????(1)????????SY/T6194-96?漲????????????????Χ8-13m??????????6m?????????????????????ó???20%??

????(2)??????????治????????????????????????????????Щ?????????????????????ó??????????12.5%??

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????(1)??SY/T6194-96?漲?????????????????????????????0.045%??????????0.045%??

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????(1)??SY/T6194-96?漲???????????(GB246-97)????????(GB228-87)???????顣

????(2)????????????APISPEC5CT1988???1??漲?????????顢??????顢?????????????????顢???????(ASTME18??E10???°汾?漲????)?????????顢??????????(ASTMA370??ASTME23???й??????°汾?漲????)?????????(ASTME112???°汾??????????)??

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????(2)API?漲?????????????R-1?4.88??7.62m??R-2?7.62??10.36m??R-3?10.36m????????

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????(4)?????????????????API???????????????????????????(???????????????????)???????NC-55E??NC-80E??NC-L80??NC-80HE???

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??????????????????APISPEC5CT1988???1?棬???????H-40??J-55??K-55??N-80??C-75??L-80??C-90??C-95??P-110??Q-125??10???

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