Hebei Yanshan Yonghui Steel Tubes Co., Ltd.
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Hot-extended Tubes
Specification and type
Standard applied
Contents of Material
φ219×6-20
GB/T8162-1999
GB/T8163-1999
20
#
Q235
φ273×6-28
φ325×6-30
φ377×10-25
φ426×8-30
φ480×8-30
φ530×8-30
φ630×8-30
φ720×10-30
φ820×10-30
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