| Certifications | IATF16949 |
| Model | K7RTCI / BKR6EIX/NGK IFR6T11/NGK PFR6Q/NGK BKR6E |
| Product Brand | CORINTH/Support brand customization |
| Product Code | KLT9001 |
| Product Attributes | Thread length: 19mm |
| Thread diameter: 14mm | |
| Wrench size: 16mm | |
| Installation torque: 25-30 N·m |
Laizhou Tongde Auto Parts Co., Ltd., established in 2012, is a comprehensive auto parts enterprise.
In 2013, the company passed ISO9001 quality management system certification for the first time.
In September 2015, the CORINTH brand was officially established, marking the beginning of a new stage of brand-oriented and differentiated development, while simultaneously strengthening the product iteration capabilities of brake pads, brake discs, and spark plugs.
In 2018, a fully automated intelligent production line was introduced, achieving a stable daily output of 50,000 spark plugs, an annual output of 3.6 million sets of brake pads, and an annual output of 3 million brake discs. The company has obtained multiple international authoritative certifications, including ECE R90, NSF, and AMECA, ensuring product quality meets international standards and officially stepping into the global market.
