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FIMOUS FASTENER
Address: Zhongyuan Building ,Hebei,China
Tel: 008617531133527
Email :amanda@fmsfastener.com
How to Make Bolts and Nuts
2019-08-15 03:31:38
Process Flow Diagram
High strength fastener for cold forging
RemoveRust→Annealing → Wire drawing→ Cold forging → Thread rolling →Heat treatment→ Surface treatment → fastener inspection → packing
