H-beam
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H-beam tsev steel qauv
H-section steel yog ib hom kev lag luam seem thiab kev ua haujlwm siab nrog ntau qhov kev ua kom zoo tshaj plaws hauv cheeb tsam kev faib tawm.
thiab tsim nyog ntau zog-rau-qhov hnyav piv.H-shaped steel muaj qhov zoo ntawm kev khoov muaj zog
tsis kam, kev tsim kho yooj yim, txuag nqi thiab lub teeb qauv hauv txhua qhov kev qhia.