Nyob rau hauv xyoo tas los no, granite tau dhau los ua cov khoom siv nrov rau kev tsim khoom hauv ntau qhov kev lag luam, suav nrog aerospace, tsheb, thiab kev kho mob.Qhov no feem ntau yog vim nws cov khoom zoo xws li lub zog siab, durability, thiab tsis kam hnav thiab corrosion ...
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