China Industrial Tempering Manufacturers Factory Suppliers
We are committed to finding a shortcut to improve production efficiency and reduce costs for customers and constantly provide customers with various excellent Vacuum Carburizing, Selective Hardening, Carburizing and services. Competition in the market has led to goods being produced cheaply and a consequent deterioration in quality, but our Industrial Tempering are of high quality and able to compete internationally. We are committed to providing our customers with excellent after-sales service. We strive to find the right fit with our customers' interests to achieve mutual benefits and create common values. We are committed to building long-lasting relationships with our clients, based on trust, reliability, and professionalism. Our products have won unanimous praise from people in the industry for their stable and reliable quality, high firing rate, reasonable price, and efficient service. We use the double first concept of quality and service to realize the sustainable development of our company.
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Tempering
Tempering is a mandatory post-quenching heat treatment. Fresh martensite is hard but brittle, with high residual stress. Without tempering, a quenched part is prone to cracking or fracture in...
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Laser Cutting
We run high-performance fiber laser tube cutters in parallel — dedicated to precision profiling of carbon steel, stainless steel, aluminum, and copper alloy tubes from φ16 up to 120mm.
Key...
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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...
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Spheroidizing Annealing
Spheroidizing annealing transforms the lamellar carbide structure in steel into a spheroidal (globular) form through controlled heating and slow cooling. This reduces hardness, improves...
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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...
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Induction Hardening
Induction hardening uses electromagnetic induction to heat specific surface areas of a part — with heating times measured in seconds — followed by immediate water or polymer quenching. The rapid...
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Surface Lubrication
Surface lubrication applies solid or dry-film lubricant coatings to metal surfaces to reduce friction, prevent galling, and extend die life in cold forming operations . The lubricant layer is...
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Shot Blasting
Shot blasting is a mechanical surface preparation process that propels spherical metal shot at high velocity (65–110 m/s) using a centrifugal wheel . The impact of the shot removes mill scale,...
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Sand Blasting
Sandblasting is an abrasive blasting process that propels sand or other abrasive media against a surface under high pressure, typically using compressed air . The process removes surface...
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Cold Heading Dies
We design, manufacture, and maintain cold heading dies entirely in-house — from initial geometry definition to final heat treatment, surface coating, and ongoing repair. This vertical integration...
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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...
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Progressive Stamping Dies
We design, manufacture, and maintain progressive stamping dies entirely in-house — from strip layout and station sequencing to tool steel selection, heat treatment, surface engineering, and...
Our boss is very satisfied with this cooperation and we hope to have the opportunity to cooperate again in the future.
The company's commitment and support for excellent customer service motivate them to go the extra mile. This makes us very grateful for choosing to work with them and for their excellent service.
The company's service attitude is very good, the transportation process is very fast, and we received the products quickly.
Their customer service patiently explained the details, remarked that the workshop was serious about production, and the results were quite satisfactory, praised!
Thank the seller! I'm very satisfied with these products!
It was a very pleasant cooperation, we not only received high-quality products, but also got perfect after-sales service, which helped us solve a lot of trouble!
We are committed to making better Precision CNC Machining, Precision Angle Sheet Metal Bending to serve consumers since we have standard modern factory buildings, high-quality employees, high-tech talents, and excellent management team with the belief of 'ability, precision, and speed'. Ningbo Fenghua Bolong Machinery Manufacturing Co., Ltd. is one of the most professional industrial tempering manufacturers and suppliers in China, also supports high quality customized service. With abundant experience, we warmly welcome you to buy durable industrial tempering made in China here from our factory.


















