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Hunan Bygold Technology co., LTD was founded in 2011,located in Jinlong district,Xiangyin Hunan province,covers an area of more than 100M3.Bygold is committed to the development of high quality mechanical fitting screw, and which is a fastener manufacturer who include research, production and sales.Bygold has the world’s advanced fastener production equipment,producing and marketing professionally all levels products which comply with DIN,ANSI,ISO and GB and 8.8,10.9,12.9 level standard parts. Bygold is one of manufacturer which mainly produce 12.9 level standard parts in the world.With the rapid development of China’s market economic and the increasing demand for fastener in auto industry and construction industry, fastener is becoming more and more widespread. The advantage of manufacturing technique for raw material, the advance technician and equipment from America, Japan, Germany, and the full set of service make an fastener manufacturing base with high technology, high quality, and high-added value.

SOCKET HEAD CAP SCREW DIN912 , HEX BOLTS DIN931,DIN933, SOCKET FLAT HEAD CAP SCREW DIN7991，HEX SOCKET BOTTON HEAD SCREW ISO7380,NUTS,SOCKET SET SCREWDIN914