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| Perennial gauge Spot inventory reserve 100 tons of steel pipe£º |
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| ¡¡¡¡(A)GB8163---1999 The fluid structure |
57*3*3.5*4 |
76*4*4.5*6 |
89*4*4.5*5*6 |
108*4*4.5 |
133*4*4.5 |
159*4.5*5*5.5*6*7*8 |
168*6*7*8 |
194*6*7*8 |
273*7*8*9*10 |
299*7*8*9*10*12 |
219*6*7*8*9*10*12 |
325*8*9*10*12 |
351*8*9*10*12 |
377*9*10*12 |
402*9*10*12 |
245*7*8*9*10*12 |
426*9*10*12 |
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| ¡¡¡¡(B)GB3087---1999 middle and low-pressure boiler tubes |
57*3*3.5 |
76*4*4.5 |
89*4*4.5*5*6 |
108*4*4.5*5*6 |
133*4*4.5*5*6 |
159*4.5*5*6*8 |
168*6*8 |
180*6*7*8*10 |
194*6*7*8*10 |
203*8*9*10*12 |
219*6*7*8*10*12 |
245*7*8*10*12 |
273*7*8*10*12 |
299*8*9*10*12 |
325*8*9*10*12 |
351*8*9*10*12 |
377*8*9*10*12 |
426*9*10*12 |
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