Fasteners Screws, Bolts, Tools manufacturer / supplier in China, offering Grade 10.9 DIN912 GB70.1 Black Hexagon Socket Cap Screw Full Thread Carbon Steel/Alloy Steel, Grade 8.8 DIN912 GB70.1 M1.6-M64 Black Hexagon Socket Cap Screw Full Thread Carbon Steel/Alloy Steel, Grade 6.8 M6-M48 Dacromet Square Head Bolt Half Thread Carbon Steel/Alloy Steel and so on.
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