Fistula ferrea inconsutilem ad structuram GB / t8162-2018 maxime adhibita est ad structuram generalem et machinationem. Repraesentativa materia (brandi): chalybs carbonis 20#, 45 chalybe; Admisceri ferro Q345, 20Cr, 40Cr, 20CrMo, 30-35crmo, 42CrMo, etc. Structural chalybis immaculatam, inconsutilem fistulam (GB / T14975-2002) calidum est...
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