Takardun Farashin don China Gavanized Round/Rectangular/Square Karfe Bututu/Sashe Mai Raɗaɗi
Ingantattun kayan aikin mu da kyakkyawan gudanarwa a duk matakan halitta suna ba mu damar ba da garantin gamsuwar mai siye gabaɗaya don Round / Rectangular / Square Steel Pipe / Sashin Hollow don amfani da tsari. Muna bin samar da kayan haɗin kai don masu siye kuma muna fatan gina dogon lokaci, amintacce, gaskiya da ƙungiyoyi masu tasiri tare da masu siye. Da gaske muna jiran tsayawar ku. A cikin sabon karni, muna inganta sha'anin ruhun "United, m, high dace, bidi'a", da kuma tsaya kan mu manufofin "bisa inganci, zama m, mai daukan hankali ga farko aji iri". Za mu yi amfani da wannan damar ta zinare don ƙirƙirar makoma mai haske.
Domin tsarin bututu, akwai ba kawai zagaye bututu, da murabba'in bututu, rectangular bututu, da m sashe, welded da sumul iri. Akwai tsananin buƙatu game da girman, wanda ke nufin haƙuri ba shi da yawa, galibi bin ASTM A53, ASTM A501 misali. Ba za a iya maye gurbin bututun tsari ba amma bututun ruwa na iya maye gurbin bututun tsarin a ka'idar, saboda bututun ruwa yana buƙatar wuce NDT ko gwajin ruwa ɗaya bayan ɗaya. Ana amfani da bututun tsarin galibi don gini, aikin injiniya, ma'adinai, na'ura mai ƙarfi da sauransu.
| Daidaitawa | Grade | OD | Thickness | Magana |
| ASTM A106 | 106B 106C | 21.3-914 mm | 2-150 mm | karfe bututu |
| ASTM A213 | Saukewa: T5T9T11T12T22 | 19-127 mm | 2-20mm | Heat karfe bututu |
| ASTM A335 | P5 P9 P11 P12 P22 P36 P91 | 60.3-914 mm | 2-150 mm | karfe bututu |
| ASTM A333 | Gr6 gr8 gr10 | 21.3-914 mm | 2-80 mm | Low zafin bututun karfe bututu |
| Saukewa: EN10216-2 | P195GH P235GH P265GH 16Mo3 13CrMo4-5 10CrMo9-10 15NiCuMoNb5-6-4(WB36) X10CrMoVNb9-1 X20CrMoV11-1 | 19-914 mm | 2-150 mm | karfe bututu |
| GB9948 | 10 20 12CrMo 15CrMo 12Cr1MoV 12Cr2Mo 12Cr5Mo 12Cr9Mo | 19-914 mm | 2-150 mm | bututun mai |
| GB6479 | 10 20 Q345BCDE 12CrMo 15CrMo 12Cr2Mo 12Cr5Mo 10MoWVNb 12SiMoVNb | 19-914 mm | 2-150 mm | Bututun taki mai matsa lamba |
