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    Dongguan Laigang Steel Structure Co., Ltd. is a subsidiary co-founded by Laigang Construction Co., Ltd. a subsidiary of Laiwu Steel Group. Laiwu Steel Group. located at Huangjian Town, Dongguan, Guangdong Province.taking up an area of 150,000 m2, including 50,000 m2 of main workshop.national first grade qualification....