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No. 2, Wangyuan Road, Moling Street, Jiangning District, Nanjing, Jiangsu, China (Mainland)
Standard fasteners DIN603 A2/A4 stainless steel flat head square neck carriage bolt GB14 bolts and nuts set, US $ 0.2 - 0.5 / Piece, Jiangsu, China, FBR, DIN603-5.Source from Nanjing Flybear Hardware Products Co., Ltd. on Waimaotong.com.