Tianjin Longshi Fasteners Co.,LTD is a professional fasteners manufacturer, which was established in 2008,mainly produces high quality studs, bolts and nuts. The headquarter of the company covers an area of 21,000 square meters,with an annual output value of 200 million yuan, more than 200 employees and more than 100 sets of domestic advanced production equipment.The company has passed ISO9001international quality management systemcertification,ISO14001environmentalmanagement system certification,OHSAS18001occupational health and safety manage-ment system certification.It is a "manufacturing + service" type enterprise integrating design,development,production,packing,and other services. Longshi always adhere to quality and reputation first.

Longshi Fasteners has independently developed high-performance fastener products of grade 8.8, 10.9 and above. Longshi's fastener products are widely used in industries such as petrochemical, mechanical manufacturing, automotive manufacturing, steel structure engineering, bridges, and railway ....