China Metal Surface Grinding Manufacturers Factory Suppliers
We are a leading Internal Spline Broaching, Precision CNC Turning Service, Surface Grinding Service company in China with many years of experience, known for excellent quality control and new product development. Our company is committed to offering customers with high-quality, safe Metal Surface Grinding at competitive prices, and creating satisfactory services for every customer. Our company strives for long-term partnerships with our clients, based on trust and mutual benefit. We respect our customers, treat them well, and serve our customers' needs as the root of everything, starting from their actual needs. We actively optimize the market operation model and cultivate a team of high-quality and compound talents that adapt to the changes in the global market and the development of business operations at home and abroad. Since its establishment, the company has been adhering to the business philosophy of establishing a business with integrity, educating and motivating employees to keep making progress with traditional national culture. We are willing to dedicate better products to new and old friends in order to better serve customers and benefit society. Quality is the basic element of a company's operation and development and the core to ensure the quality of products is technology.
Add to Inquiry
Surface Grinding
Surface grinding uses a rotating abrasive wheel to produce flat surfaces with high dimensional accuracy and fine finish — removing oxide layers, correcting distortion, and preparing parts for...
Add to Inquiry
Hot Forging
Hot forging is a metal shaping process that uses heat — typically 1,000°C to 1,200°C for steel — to reduce flow stress and enable complex deformation in a single press stroke. At these...
Add to Inquiry
CNC Turning
CNC turning produces cylindrical components with ±0.02mm accuracy — from Φ2mm pins to Φ500mm shafts, up to 1000mm in length. We machine stainless steel, carbon steel, alloy steel, aluminum, and...
Add to Inquiry
Multi-axis CNC Machining
Multi-axis CNC machining handles complex geometries in a single setup — eliminating multiple clampings and the tolerance errors they introduce. We run 3-axis, 4-axis, 5-axis simultaneous, and...
Add to Inquiry
Thread Machining
Thread machining covers multiple processes for creating internal and external threads — rolling, milling, cutting, and grinding. Each method serves different applications: rolling cold-forms...
Add to Inquiry
Internal Spline Broaching
Internal spline broaching is a high-precision machining process that uses a multi-tooth tool — the broach — to cut internal spline profiles in a single pass. Each successive tooth removes a...
Add to Inquiry
Spline and Gear Hobbing
Hobbing is a continuous generating process that uses a helical cutting tool — the hob — to produce splines, spur gears, and helical gears with consistent tooth geometry across production runs....
Add to Inquiry
Internal and External Cylindrical Grinding
Cylindrical grinding is a finishing process that uses abrasive wheels to refine external (OD) and internal (ID) surfaces of round components — achieving tighter tolerances and better surface...
Add to Inquiry
Carburizing
Carburizing is a thermochemical process that diffuses carbon atoms into the surface layer of low-carbon steels, increasing surface carbon content to approximately 0.8%. After quenching, this...
Add to Inquiry
Phosphating and Coating
Phosphating is a chemical conversion coating process that treats ferrous metal surfaces with a dilute solution of phosphoric acid and other chemicals, converting the metal surface into an integral...
Add to Inquiry
Cleaning and Rust Prevention
Cleaning and rust prevention removes oils, greases, and cutting fluids from metal surfaces, followed by application of a protective coating to prevent oxidation during storage and transit. The...
Add to Inquiry
Cold Extrusion Dies
We design, manufacture, and maintain cold extrusion dies entirely in-house — from geometry definition to carbide selection, heat treatment, surface coating, and ongoing repair. This vertical...
Speaking of this cooperation with the Chinese manufacturer, I just want to say"well dodne", we are very satisfied.
You are a trustworthy and serious company.
The pickup point is very close to me, and I got the goods soon, thank you!
Their company has built it, it's great, and I'm very satisfied.
How to say, you have a superb craftsmanship, and feel very comfortable, and the price is very reasonable.
It is our great honor to cooperate with you!
We strive to devote our heart and soul to every aspect of Copper Negative Battery Terminals, Aluminum Suspension Forks, clutch parts production and realize our value in the process of satisfying our customers. Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd. is one of the most professional metal surface grinding manufacturers and suppliers in China, also supports high quality customized service. With abundant experience, we warmly welcome you to buy durable metal surface grinding made in China here from our factory.


















