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We are experienced manufacturer. Wining the majority of the crucial certifications of its market for Featured, Square Neck Carriage Bolts , Bolt , Din912 Hex Socket Screw , With strong technical strength and advanced production equipment, and SMS people purposefully , qualified, dedicated spirit of enterprise. Enterprises took the lead through the ISO 9001:2008 international quality management system certification, CE certification EU ; CCC.SGS.CQC other related product certification. We look forward to reactivating our company connection.