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Ningbo Zhenhai Guisi Zhaoyang Hardware Screw Factory
宁波市镇海区贵驷朝阳五金螺钉厂
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13 Years
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Hexagon Bolt
Hexagon Socket-Head Cap Screw
Round Head Bolt
T-Bolt
Double-End Bolt
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(GB 32.1 - 1988)
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material
Carbon Steel
Coating
electroplating
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