
High Precision JD MHg Steel Ring. High Precision Tolerance: Roundness, flatness, and parallelism tolerance within 0.01mm. Premium Material: Manufactured with fine bearing steel for durability. Full Customization: Offers full customization, minor customization, and flexible customization options. ISO Certified Quality: Certified with ISO 9001:2015, ISO 14001:2015, and ISO 45001:2018. 100% Product Inspection: All finished products undergo visual and function inspection. Market Leading Position: Ring traveller market share has been first in China for over 20 years. Fast Delivery: Quick delivery service available with lead times within 15 workdays off-peak. ODM Service Available: Supports customization from samples, designs, and full customization.