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16YRSHuangshan Huasu New Material Science & Technology Co., Ltd
hot dip galvanized rectangular steel hollow section China yuantaiderun
5YRSTianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd.
big rectangular tube factory yuantaiderun (accept OEM customization)
5YRSTianjin Yuantai Derun Steel Pipe Manufacturing Group Co., Ltd.
16*16 square tube square tube astm a500 non-alloy square steel tubing
8YRSTianjin Youfa International Trade Co Ltd
q235 square metal tube carbon steel pipe tube square steel tubing
8YRSTianjin Youfa International Trade Co Ltd
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