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tyler@kirail.com
Home
About Us
Company Profile
Our Factory
Certificate
Contact Us
Products
Rail Wheels
Steel Rail
Railway Bolts
Rail Fastening System
Rail Clips
Rail Screw Spikes
Rail Fish Plates
Rail Tie Plates
Rail Clamps
Rail Dog Spike
Rail Gauge Rod
Rail Rubber Pads
Rail Anchor
Rail Shoulder
Railway Dowel
Rail Insulator
Digital Track Gauge
News
Market
FAQ
Contact Us
tyler@kirail.com
Production Process
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Production Process
2020-12-19
By: Kingrail Parts
Fishtail Bolts Production Process
1. Raw Matrial Coils 2. Phosphoric Acid Pickling 3. Speroidizing Annealing 4. Drawn Steel Wire 5. Cold Heading Thread Rolling 6. Precision Machining 7. Heat Treatment 8. Spot Check and Comprehesnsive Check.
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