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WELL rail transit fasteners including bolts, nuts and rail fastening plates

Nanjing Qijun Transportation Equipment Co., Ltd. — Empowering Global Rail Transit Construction with Premium Rail Fasteners

Recently, Nanjing Qijun Transportation Equipment Co., Ltd. has further focused on the R&D, intelligent manufacturing and

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In May 2025, Nanjing Qijun obtained the patent for anti-loosening locking nuts and their processing technology

Information from the State Intellectual Property Office shows that Nanjing Qijun Transportation Equipment Co., Ltd. has

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In July 2025, Nanjing Qijun obtained the positioning end wedge bolt technology, which is convenient for installation and connection to be more secure.

Information from the State Intellectual Property Office shows that Nanjing Qijun Transportation Equipment Co., Ltd. has

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