Puas yog koj tab tom nrhiav rau sab saum toj-notch CR (Cold Rolled) thiab HR (Kub Rolled) steel coils? Saib tsis pub dhau Royal Group, tus thawj coj ntawm cov khoom lag luam steel. Nrog rau ntau yam khoom, suav nrog kub yob steel kauj, HR steel kauj, thiab CR coil, Royal Group yog yo ...
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