Piston Ring is a metal ring used to embed inside the piston groove. There are two types of piston rings: compression rings and oil rings. The compression ring can be used to seal the combustible mixture in the combustion chamber; The oil ring is used to scrape off excess oil from the cylinder. A piston ring is a metal elastic ring with significant outward expansion deformation, which is assembled into its corresponding circular groove on the profile. The reciprocating and rotating piston ring, relying on the pressure difference of gas or liquid, forms a seal between the outer circular surface of the ring and the cylinder, as well as between the ring and one side of the ring groove
Function of testing report:
1. Project bidding: Issue authoritative third-party CMA/CNAS qualification report
2. Online e-commerce platform entry: Quality inspection report recognized by major e-commerce platforms 3. Used as a sales report: issuing legally effective testing reports to make consumers more confident 4. Papers and research: Provide professional personalized testing needs 5. Judicial services: providing scientific, fair, and accurate testing data 6. Industrial problem diagnosis: Verify the troubleshooting and correction of industrial production problemsBaijian and testing process:
1. Telephone communication and confirmation of requirements
2. Recommend solutions and confirm quotations 3. Mail samples and arrange testing 4. Progress tracking and result feedback 5. Provide reports and after-sales service 6. If urgent or priority processing is requiredTesting and testing characteristics:
1. The testing industry is fully covered, meeting different testing needs
2. Fully cover the laboratory and allocate localized testing nearby3. Engineers provide one-on-one services to make testing more accurate
4. Free initial testing, with no testing fees charged
5. Self service order delivery for free on-site sampling
6. Short cycle, low cost, and attentive service 7. Possess authoritative qualifications such as CMA, CNAS, CAL, etc 8. The testing report is authoritative and effective, and is generally used in China