 Ningbo Zhenghai Yongding Fastener Co., Ltd.
We mainly produce as following:
the stud bolts include B7, B7M, L7, L7M and B16.
Our producing range: diameter: 5/16”-4”, M8-M100,
Length: 16MM-6000MM.
The bolts grade 8.8, 10.9, 12.9,
A325, A490, A394, A449, etc;
Our We yearly through put for
bolt is 6000 Tons and for stud bolt is 10000 Tons.
Now our products are widely export to America,
Southeast Asia, Europe, Middle East and so on.
Our web site:
Address：Jiulonghu,Duguo village, Zhenhai, Ningbo, Zhejiang, China
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