NingBo ZhengHai YongDing Fastener Co., Ltd., established in 2007ï¼?located at DuJiaAo Village, JiuLongHu Town, NingBo. This covers an area of 16000 square meters with 13000 square meters construction area.
　　　We major manufacture high strength hex bolt, thread rod, stud double-ended and other nonstandard fasteners. Under the different standards of GB, ANSI, DIN, BS, AS ISO, and so on. The bolts grade include 6.8, 8.8, 10.9, 12.9, A325, A490, A394, A449, etc; And the stud bolts include B7, B7M, L7, L7M ...
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