1.Engines are qualified after the thermal running-in test.
2.Exquisite product appearance.
3.Perfect power and fuel saving.
4. All critical parts are produced by OE manufacturers.
5. Durability is better than other conventional engines.
6. Packed in wooden boxes for safer transportation.

1.Engines are qualified after the thermal running-in test.
2.Exquisite product appearance.
3.Perfect power and fuel saving.
4. All critical parts are produced by OE manufacturers.
5. Durability is better than other conventional engines.
6. Packed in wooden boxes for safer transportation.

1.Engines are qualified after the thermal running-in test.
2.Exquisite product appearance.
3.Perfect power and fuel saving.
4. All critical parts are produced by OE manufacturers.
5. Durability is better than other conventional engines.
6. Packed in wooden boxes for safer transportation.

1.Convexs are qualified after the thermal running-in test.

2.All key parts are made by OE factories.

3.Perfect power and fuel saving.

4.The durability of the product is better than other manufacturers’ convexs .

5.All product accessories in Convex are new.Refurbished products are not accepted.

6.After-sale service is guaranteed , and the warranty is 6 months after the activation of the installed scanning code.

1.Cylinder head assemblies are tested by pressure leakage detection, which are100% qualified.2.The air tightness of our cylinder head assembly is 100% checked,w

1.Cylinder head assemblies are detected by pressure leakage which are 100% qualified.
2.The airtightness of the cylinder head assembly is 100% qualified
3.The valve clearance is in accordance with the OE standard.
4.The torque standard of all fasteners is in accordance with OE standard.
5.The durability of the product is better.
6.All product accessories are new.
7.The after-sales service of the product is guaranteed, and the warranty is 6 months after the machine is scanned and activated.

1.Cylinder head are qualified after the pressure leakage test before leaving the factory.
2.Valve seat and guide materials are implemented according to the OE standard of the corresponding model.
3.Cylinder head materials are carried out according to the OE standards of the corresponding models.
4.Xinwoye’s technical team is professional and can customize the products that customers need.
5.Product appearance is exquisite, and processing accuracy is guaranteed.
6.Pre-sale and after-sale services of products are guaranteed with a professional service team.

1.Cylinder head assemblies are detected by pressure leakage which are 100% qualified.
2.The airtightness of the cylinder head assembly is 100% qualified
3.The valve clearance is in accordance with the OE standard.
4.The torque standard of all fasteners is in accordance with OE standard.
5.The durability of the product is better.
6.All product accessories are new.
7.The after-sales service of the product is guaranteed, and the warranty is 6 months after the machine is scanned and activated.

1.The cylindricity test of all valves is qualified.
2.The raw materials for the valve are all from state-owned large factories.
3.The valve concentricity is within 0.03mm.
4.The roughness of the valve stem is ≤ 0.6.
5.The valve has passed the flaw detection and is qualified.
6.The car models are complete and customizable, without mold fee.

1.The cylindricity test of all valves is qualified.
2.The raw materials for the valve are all from state-owned large factories.
3.The valve concentricity is within 0.03mm.
4.The roughness of the valve stem is ≤ 0.6.
5.The valve has passed the flaw detection and is qualified.
6.The car models are complete and customizable, without mold fee.

1.The cylindricity test of all valves is qualified.
2.The raw materials for the valve are all from state-owned large factories.
3.The valve concentricity is within 0.03mm.
4.The roughness of the valve stem is ≤ 0.6.
5.The valve has passed the flaw detection and is qualified.
6.The car models are complete and customizable, without mold fee.

1.The cylindricity test of all valves is qualified.
2.The raw materials for the valve are all from state-owned large factories.
3.The valve concentricity is within 0.03mm.
4.The roughness of the valve stem is ≤ 0.6.
5.The valve has passed the flaw detection and is qualified.
6.The car models are complete and customizable, without mold fee.

More than 100 kinds of models:including minicars, cars, light medium and heavy trucks, agricultural machines and motorcycles, etc.

1.High precision CNC internal hole grinding equipment, cylindricity of the inner hole ≤ 2um, roughness ≤ Rao.2
2.High precision CNC cylindrical grinding equipment, cylindricity of the inner hole ≤ 1um, roughness ≤ Rao.1
3.High precision end face grinding equipment, chord height ± 2um, roughness Rao. 1
4.The product cleanliness reaches 1 piece/mg.
5.The efficiency of the automatic oiling machine can reach 10,000 pieces/day.
6.100% static simulation sinking performance test.

1.High precision CNC internal hole grinding equipment, cylindricity of the inner hole ≤ 2um, roughness ≤ Rao.2
2.High precision CNC cylindrical grinding equipment, cylindricity of the inner hole ≤ 1um, roughness ≤ Rao.1
3.High precision end face grinding equipment, chord height ± 2um, roughness Rao. 1
4.The product cleanliness reaches 1 piece/mg.
5.The efficiency of the automatic oiling machine can reach 10,000 pieces/day.
6.100% static simulation sinking performance test.

1.High precision CNC internal hole grinding equipment, cylindricity of the inner hole ≤ 2um, roughness ≤ Rao.2
2.High precision CNC cylindrical grinding equipment, cylindricity of the inner hole ≤ 1um, roughness ≤ Rao.1
3.High precision end face grinding equipment, chord height ± 2um, roughness Rao. 1
4.The product cleanliness reaches 1 piece/mg.
5.The efficiency of the automatic oiling machine can reach 10,000 pieces/day.
6.100% static simulation sinking performance test.

1. High precision,outer circle size ≤0.01mm.2.High strength, good wear resistance.

1. High precision,outer circle size ≤0.01mm.
2.High strength, good wear resistance.

1. High precision,outer circle size ≤0.01mm.
2.High strength, good wear resistance.

1. High precision,outer circle size ≤0.01mm.2.High strength, good wear resistance.

1. High pressure resistance, less prone to corrosion, and long service life.
2. High thermal conductivity and mechanical properties.
3. Easy to process and form.

1. Good material density and uniformity.
2. Material saving, energy saving, environmental protection, and efficiency.
3. Material self-lubrication greatly improves the wear resistance and service life of the product.
4. Relatively low machining costs.

1.Outer diameter≤0.01mm Concentricity≤0.02mm.
2.High strength, good wear resistance.

1.Outer diameter≤0.01mm Concentricity≤0.02mm.
2.High strength, good wear resistance.

1.High wear resistance, high surface hardness, high mechanical strength.
2.Precise profile, long service life.

1.High wear resistance, high surface hardness, high mechanical strength.
2.Precise profile, long service life.

1.High wear resistance, high surface hardness, high mechanical strength.
2.Precise profile, long service life.

1.High wear resistance, high surface hardness, high mechanical strength.
2.Precise profile, long service life.

1.The quality is stable and durable.
2.High-tech sophisticated advanced materials.

1.The quality is stable and durable.
2.High-tech sophisticated advanced materials.

1.The quality is stable and durable.
2.High-tech sophisticated advanced materials.

1.The quality is stable and durable.
2.High-tech sophisticated advanced materials.

1.Piston top processing finish is high which reduce the heat load of the piston top.
2.The thicker piston head prevents faster temperature transfer at the top of the
Piston.
3.Part of the top of the piston using ceramic spray, which is high temperature resistance, corrosion resistance and reduces heat absorption.
3.High temperature resistance, corrosion resistance, reduce heat absorption.
4.The piston material is consistent with OE standards.
5.Machining adopts high-precision CNC or machining centers to ensure the dimensional accuracy of each part of the product.

1.Piston top processing finish is high which reduce the heat load of the piston top.
2.The thicker piston head prevents faster temperature transfer at the top of the
Piston.
3.Part of the top of the piston using ceramic spray, which is high temperature resistance, corrosion resistance and reduces heat absorption.
3.High temperature resistance, corrosion resistance, reduce heat absorption.
4.The piston material is consistent with OE standards.
5.Machining adopts high-precision CNC or machining centers to ensure the dimensional accuracy of each part of the product.

1.Piston top processing finish is high which reduce the heat load of the piston top.
2.The thicker piston head prevents faster temperature transfer at the top of the
Piston.
3.Part of the top of the piston using ceramic spray, which is high temperature resistance, corrosion resistance and reduces heat absorption.
3.High temperature resistance, corrosion resistance, reduce heat absorption.
4.The piston material is consistent with OE standards.
5.Machining adopts high-precision CNC or machining centers to ensure the dimensional accuracy of each part of the product.

1.Piston top processing finish is high which reduce the heat load of the piston top.
2.The thicker piston head prevents faster temperature transfer at the top of the
Piston.
3.Part of the top of the piston using ceramic spray, which is high temperature resistance, corrosion resistance and reduces heat absorption.
3.High temperature resistance, corrosion resistance, reduce heat absorption.
4.The piston material is consistent with OE standards.
5.Machining adopts high-precision CNC or machining centers to ensure the dimensional accuracy of each part of the product.

1.High hardness,, anti-breakage, corrosion resistance, durable.
2.The gasket and bolt are of the same material.
3.Greater torque than similar products.
4.The thread is not scratched.
5.Advanced production technology, smooth and flat section.

1.High hardness,, anti-breakage, corrosion resistance, durable.
2.The gasket and bolt are of the same material.
3.Greater torque than similar products.
4.The thread is not scratched.
5.Advanced production technology, smooth and flat section.

1.High hardness,, anti-breakage, corrosion resistance, durable.
2.The gasket and bolt are of the same material.
3.Greater torque than similar products.
4.The thread is not scratched.
5.Advanced production technology, smooth and flat section.

1.High hardness,, anti-breakage, corrosion resistance, durable.
2.The gasket and bolt are of the same material.
3.Greater torque than similar products.
4.The thread is not scratched.
5.Advanced production technology, smooth and flat section.