Cold Heading Machine, Bolt and Nut Making Machine, Cold Former Machine manufacturer / supplier in China, offering Industrial Fastener Threading Machine Auto-Lubrication System Solution for Automotive & Construction Bolts, Heavy-Duty Thread Rolling Machine Hardened Steel Processing Aerospace-Grade Fastener Production, Automatic Thread Rolling Machine 300PCS/Min Servo-Driven Rollers M1-M3 Fastener Threading 30% Energy Saving and so on.
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