(1)结构用管:GB8162-1999 (2)输送流体管:GB8163-1999 (3)中低压锅炉管:GB3087-1999 (4)高压锅炉管:GB5310-95/ST45.8-Ⅲ (5)化肥专用无缝管:GB6479-86 (6)石油套管:API 5CT (7)管线管:ASTMA53B API 5L |
(1)结构用管:GB8162-1999 (2)输送流体管:GB8163-1999 (3)中低压锅炉管:GB3087-1999 (4)高压锅炉管:GB5310-95/ST45.8-Ⅲ (5)化肥专用无缝管:GB6479-86 (6)石油套管:API 5CT (7)管线管:ASTMA53B API 5L |
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