trailer hitch ball hitch drop hitch

trailer hitch ball  hitch drop hitch Product name:Trailer Hitch Ball  Chrome Plated Finish Trailer Hitch Ball The hitch ball has a 1-7/8" diameter x 3" long shank with wrench flats. Raw material : C45; 40Cr, High strength alloy steel. We can also customize according to Customer's requirments. Processing flow: 1. The ball blank: We have all kinds of molding sizes and use high precision friction press to forge the ball blanks. 2. Machining: CNC machine, Processing Center, Coreless Grinding Machine, Drilling Machine , Polishing Machine, High precision wire rolling machine. 3. Heat treatment: Mesh belt furnace , high-frequency quenching , Tempering treatment. 4. Polishing : We have to go through three polishing before Electroplating. 5. Surface: The hitch ball is chrome plated (Zinc plated, Silver plated, brass plated, Nickel plated) according to industry standard. 6. And Salt Spray Test 48-96 Hrs. Specs: Spring washer…

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