Metro 45# Dacro Shield Double-Ended Segment Bolts Tunnel M30 Curved Hexagonal Segment Screws Bend Bolts

Hongtie Custom Processing Special-shaped Bolts Non-standard Parts Cold Heading Hot Punching Special-shaped Parts 01

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Metro bolt manufacturer arc-shaped segment 8.8 grade Dacro high-speed rail embedded parts tunnel screw threads

Handan Ming'ao Fastener Manufacturing Co., Ltd.

Ming'ao double-head arc tunnel shield tunnel connector 8.8 grade Dacro metro segment bolts

Handan Ming'ao Fastener Manufacturing Co., Ltd.

Anchor bolt Q345 is easy to disassemble, carefully selected raw materials, structurally stable, and threaded

Shanghai Luokong Future Hardware Co., Ltd.

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Shanghai Luokong Future Hardware Co., Ltd.

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Foshan Xinkaili Trading Co., Ltd

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Hebei Xinfan Metal Products Co., Ltd.

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Bers Sdorf Industrial Technology (Shanghai) Co., Ltd

M30 metro segment bolts customized in various materials, tunnel arc screws, grade 8.8 and 10.9 metro bolts

Handan Ming'ao Fastener Manufacturing Co., Ltd.

10.9s Blackened Large Hex Bolt High-Strength Connecting Accessory GB1228 for Hex Screws for Bridge Construction

Zhenghao M30 Metro Segment Bolts, Tunnel Arc Shield Screws, Grade 8.8 Metro Segment Connection Assembly

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Zhenghao Dacro Metro Segment Bolts 5.8 Grade Tunnel Shield Connection Assembly, supports custom manufacturers

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8.8 Grade High-Strength External Hex Nut Set Bolts, Bolts, Bolts, Nuts, Flat Springback Gasket Set M10/M12

Metro bolt manufacturer arc-shaped segment 8.8 grade Dacro high-speed rail embedded parts tunnel screw threads

Zhenghao Q235 material m27 Dacro tunnel arc segment connector for wind power and hydraulic conservancy double-ended hex bolts