Ningbo jiulong fasteners manufacture co 神马影院高清. , ltd. , founded in 1985. We mainly produce high strength fasteners, hex head bolts, socket head screws, studs, nuts & washers, and are applicable for high speed train, maglev, subway , railway and bridge , cross-sea bridge, steel construction factory houses, chemical industry, metallurgy, wind power generation etc. The company has passed ISO9001:2000 Quality Supervision System Certification, and gained Pressure Pipeline Elements Manufacture License, IRIS cert. and CE cert. , and so on.
HS BOLTS,TS BOLTS,HEX HEAD BOLTS(Gr. 10. 9,12. 9),SOCKET HEAD SCREWS(Gr. 12. 9),STUDS,NUTS,WASHERS 神马影院免费观看.
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