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Construction material steel angle bar for tele-tower, US $ 620 - 750 / Ton, AiSi, ASTM, bs, DIN, GB, JIS, 25*25*3mm-200*200*24mm, ASTM A36/S235JR/SS400/Q235B.Source from Shanghai Shunyun Industry Co., Ltd. on Waimaotong.com.