Kev cai 45 # kub dov seamless loj txoj kab uas hla steel yeeb nkab kua hloov pipeline engineering tuab phab ntsa seamless steel raj

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Lub seamless steel raj yog perforated los ntawm tag nrho cov puag ncig steel, thiab tsis muaj welded steel yeeb nkab rau saum npoo.Raws li txoj kev tsim, seamless steel kav yuav muab faib ua kub-dov seamless steel kav, txias-rolled seamless steel kav, txias rub seamless steel kav, squeezing seamless steel kav, thiab sab saum toj kav.

Raws li cov duab ntawm seem, seamless steel raj muab faib ua ob hom: puag ncig thiab alien.Cov kav dej txawv teb chaws muaj xws li square, oval, triangular, hexagonal, melon noob, astrology, thiab tis raj.


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