Ningbo zhenhai yongding fastener co.,ltd
The company mainly manufacture hex bolt,thread rod, stud double-ended and other some nonstandard fasteners under the different standards of GB, ANSI, DIN, BS, JIS, AS and ISO, grade of 6.8, 8.8, 10.9, 12.9, B7, B7M, L7, L7M. Our producing range: diameter: M12-M100; Length: 25-1200MM(Bolt) and 100-6000MM(Thread Rod).
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