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American Wide Flange Beams W12X45 W12X50 W12X53 American Wide Flange Beams W12X45 W12X50 W12X53 W12X58 with grade ASTM A36 ASTM A992/A572-50, US $ 490 - 700 / Ton, Shanghai, China, carbon steel, Hot Rolled.Source from Shanghai Shunyun Industry Co., Ltd. on . Learn More
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