SS490 H Hlau Beam
SS490 STEEL muaj cov khoom zoo thiab muaj peev xwm tiv taus sab nraud sab nraud thiab kev co kom muaj qee yam, txhim kho kev nyab xeeb ntawm cov qauv.
Tus ntoo khaub lig-seem ntawm SS490 hlau nqaj yuav tau siv ntau dua yog li 5% {% siab dua li cov dog dig.