High-Quality Stainless Steel Exhaust Manifold Parts - China Factory Suppliers for Custom Automotive Applications
Product Declaration
Products shown herein are made to the requirements of specific customers and are illustrative of the types of manufacturing capabilities available within Lantian group of companies.
Our policy is that none of these products will be sold to 3rd parties without written consent of the customers to whom the tooling, design and specifications belong.
About our Company
Lantian is the sales company of Lantian Group of Companies. Features of Lantian simply summarized as below:
- Trusted supplier of steel, iron & non-ferrous components.
- Extensive documented quality program in place.
- Castings, forgings, stampings, machining, welding & fabrication services.
- 9 related factories, over 50 joint-venture sub-contractors.
- 30+ years of manufacturing experiences, 15+ years of exporting experience.
- 100% of products sold to overseas customers.
- 50% of customer base is Fortune 500 companies.
Casting Service
Casting is a manufacturing process in which a liquid material is usually poured into a mold, which contains a hollow cavity of the desired shape, and then allowed to solidify.
Lantian offers multiple investment casting, sand casting, permanent casting, die casting, low pressure casting, ESR casting, lost foam casting, etc. Material can be handled include steel, iron, non-ferrous. Single component weight range is from 0.01Kg to 150 tons separately.
Machining Service
Machining is any of various processes in which a piece of raw material is cut into a desired final shape and size by a controlled material-removal process.
Lantian has more than 60 sets precision machines incl. CNC center, boring, milling, lathing, etc., and more than 300 inspection instruments incl. 3 sets CMM with grade μm. Repeated tolerance can be maintained as 0.02mm. Meanwhile awarded by certificates ISO9001-2008; ISO/TS16949. Lantian specialized in high precise machining for small-middle-big metal components.
3rd Party Inspection
Lantian worked as 3rd party inspection center besides its sister factories or sub-contractors' self inspection, Offers process inspection, random inspection and before delivery inspection services for material, mechanical, inside defects, dimensional, pressure, load, balance, surface treatment, visual inspection and test. Weekly project follow-up report together with pictures and videos, full quality inspection documentation available.
Lantian also designed as 3rd party inspection representative for several customers when their products made by other suppliers.
Our Exhibition
Frequently Asked Questions
Can I purchase the specific products displayed on your website?
No. The products shown on our website are manufactured according to specific client requirements and serve only to demonstrate the manufacturing capabilities of the Lantian Group. They cannot be sold to third parties without the written consent of the original owners of the tooling, design, and specifications.
What types of metal components and manufacturing services do you offer?
Lantian Group offers comprehensive metal component manufacturing services, including castings (investment, sand, permanent, die, low pressure, ESR, and lost foam), forgings, stampings, precision machining, welding, and fabrication services.
What materials and weight ranges can your casting service handle?
We handle a wide range of materials including steel, iron, and non-ferrous metals. Our manufacturing capacity allows us to produce single components with weights ranging from 0.01Kg up to 150 tons.
What are your machining capabilities and tolerances?
We operate over 60 sets of precision machinery (including CNC centers, boring, milling, and lathing machines) and utilize over 300 inspection instruments, including 3 CMM sets with micrometer accuracy. This setup allows us to maintain a repeated tolerance of 0.02mm under ISO9001-2008 and ISO/TS16949 standards.
Do you provide third-party quality inspection services?
Yes. Lantian acts as a 3rd party inspection center providing process, random, and pre-delivery inspections. We inspect materials, mechanical properties, internal defects, dimensions, pressure, load, balance, surface treatment, and visual appearance, and provide weekly project reports with photos and videos.






