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热镀锌弧形管片螺栓 连接双头地铁隧道双头管片外六角螺丝
Location
Hebei Handan City
Last Updated
2026-05-18
Details
Related Products
Steel structural bolts, high-intensity friction-type connections, carbon steel class 10. 9s blacked
The hot zinc-plating arc-shaped bolt connects the two-headed subway tunnel with a hexagonal screw ou
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