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galvanized serrated grating, US $ 480 - 680 / Ton, AISI, ASTM, BS, DIN, GB, JIS, Is Alloy, A36/SS400/S235JR/ST37-2/S355JR/S275JR/SM540/SM490/ST-52, hot rolled carbon steel.Source from Shanghai Shunyun Industry Co., Ltd. on Waimaotong.com.