Cov khoom
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ASNZS 1163 C350 ERW Cov Yeeb Nkab Hlau - Lub Zog Siab Cov Qauv Hollow Seem rau Kev Tsim Kho Hnyav
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ASNZS 1163 C250L0 ERW Cov Yeeb Nkab Hlau - Qhov Kub Qis Qis Cov Qauv Hollow Seem rau Kev Tsim Kho Huab Cua Txias
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ASNZS 1163 C250 ERW Cov Yeeb Nkab Hlau - Lub Hom Phiaj Dav Dav rau Kev Tsim Kho Lub Teeb
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API 5L X60 ERW Cov Yeeb Nkab Hlau - Cov Yeeb Nkab Muaj Zog Rau Cov Haujlwm Yeeb Nkab Siab
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API 5L X52 ERW Cov Yeeb Nkab Hlau: Cov Yeeb Nkab Muaj Zog Siab rau Kev Sib Kis Roj & Roj Av
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API 5L GR.B ERW Cov Yeeb Nkab Hlau - Cov Yeeb Nkab Txhim Khu Kev Ruaj Ntseg rau Kev Kis Roj, Roj Av & Dej
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ASTM A252 GR.3 / EN 10248 S355GP Marine Steel Piling Pipe: Kev Muaj Peev Xwm Tsim Khoom & Cov Khoom Tshwj Xeeb
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SA213 T22 Seamless Alloy Steel Tubes / Cov Kav Dej
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EN10216-2 X10CrMoVNb9-1 (P91) Seamless Boiler Tube - Advanced 9% Chrome Steel rau Ultra-Supercritical Power Plants