What is the minimum order quantity (MOQ)?

The MOQ is 10 pieces per model per size.

What are the delivery times for different order sizes?

Sample order (1pcs): 3-5 working days. Trial order (50-300pcs): 15-18 working days. Mass order (above 1000pcs): 25-28 working days.

What materials are used for the rings?

The rings are made of Tungsten Carbide with 90%+ purity, which is scratch-resistant, nickel-free, and hypoallergenic.

Stylish 8mm Colored Tungsten Men's Ring with Sleek Black Coating

Name: Stylish 8mm Colored Tungsten Men's Ring with Sleek Black Coating
Brand: Shenzhen Jinshengrun Technology Co., Ltd.
SKU: 2133974732

Guangdong, ChinaShenzhen Jinshengrun Technology Co., Ltd.

US$5.30

50-99 Pieces

US$4.90

100+ Pieces

Product specifications

Tungsten steel ring

Sample price:US$30.00/piece.Request sample

Product profile

Material

Tungsten

Type

Inlaid Ring

Gender

Unisex

Fabrication Processing

Polishing

Usage

Wedding, Decoration, Gift

Style

Fashion

Color

Gold

Size

11#

Material Feature

Tungsten Carbide (90%+ Purity, Scratch-Resistant)

Skin-Friendly Property

Nickel-Free, Hypoallergenic for Sensitive Skin

Surface Treatment

Mirror Polishing (Long-Lasting Shine, Anti-Tarnish

Wear Scenario

Daily Wear, Casual, Business, Gift-Giving

Customization Service

Engraving, Size Adjustment (5-13 Us Sizes)

Transport Package

PP Bag

Specification

15g

Trademark

Jin sheng run

Origin

China

HS Code

7101101900

Production Capacity

50000

Key features

Customizable Engraving and Size: Offers engraving and size adjustment from 5 to 13 US sizes.

Customizable Color Options: Available in gold, rose gold, and custom colors as requested.

Customizable Logo and Packaging: Supports customized buyer logo, material, and packaging design.

Premium Tungsten Carbide Material: Made with 90%+ purity tungsten carbide, scratch-resistant and hypoallergenic.

Fast Sample Delivery: Sample orders (1-500 pcs) delivered within 3-5 working days.

Mass Production Capacity: Capable of producing 300,000 tungsten billets per month.

Comprehensive Quality Control: Includes oil removal, dust cleaning, and scratch inspection before packaging.

Multiple Payment Methods: Accepts TT, Western Union, PayPal, and Trade Assurance.

Company profile

Shenzhen Jinshengrun Technology Co., Ltd.Guangdong, China

Business Type: Manufacturer/FactoryAverage Response Time: ≤1.58h

AI-Powered supplier vetting

SummaryShenzhen Jinshengrun Technology Co., Ltd. is identified as a China-based manufacturer/factory specializing in stainless steel and tungsten steel jewelry and related accessories. The supplier reports ISO 9001, ISO 20000, and SGS certification, more than ten years of industry experience, patented designs, intelligent production, three production lines, and a stated finished-product pass rate above 99.5%. It offers jewelry, smart-wearable-related products, and customized services including laser engraving, exclusive pattern design, and small-batch production. However, the provided information does not substantiate after-sales performance, customer cases, or financial credibility. The stated R&D-engineer and quality-control staffing levels are both below five, which indicates limited disclosed staffing capacity, while no conclusion is drawn from the omitted or restricted financial figure.

Supplier typeThe supplier is explicitly classified as a Manufacturer/Factory in China and describes itself as an accessory enterprise integrating R&D, design, precision manufacturing, global sales, and full-chain services. Its listed products include stainless steel and tungsten steel jewelry and related smart-wearable items.

CertificationsThe supplier reports SGS international quality system certification, ISO9001 production management system certification, and ISO 9001 and ISO 20000 management-system certifications. The provided slices therefore give explicit evidence of multiple certifications, although the exact scope and validity details are not supplied.

R&D capabilityThe supplier reports a material-science and senior-design team, more than ten years of sector experience, more than 20 design patents and 8 utility patents, and digitalized production and inspection processes. These specific disclosures support an established innovation capability, although the reported total R&D-engineer experience is below five years in the management-data slice and no broader R&D staffing detail is provided.

Production capacityThe supplier reports three production lines, an intelligent production line with CNC equipment and automated inspection, digital process control, 12 precision-processing steps, seven quality inspections, and a finished-product pass rate above 99.5%. These are explicit indicators of organized production and quality-control capability, though the disclosed quality-control staff count is below five.

Customization capabilityThe supplier explicitly offers laser engraving, exclusive pattern design, personalized solutions for enterprises and individuals, and flexible small-batch production. This directly supports customization capability across both design and production.

Product Q&A

Q:Why choose your company?

1. Our company has over 15 years of experience. 2. We have professional production capacity and own our own factory. 3. Fast delivery. 4. OEM/ODM is welcomed. 5. Nickel free, lead free, cadmium free. 6. We treat every customer as our good friend and give you our best service and good quality products.

Q:Can we customize our own logo on the products?

Yes, we can do it. We can customize buyer logo, size, material, packaging, and provide OEM service.

Q:Can I choose the color as I wish?

The color of the product looks as the picture shows. You can also customize the color as required.

Q:What's your sample policy?

1. Our Model: Wholesale Price not including express cost. 2. Your Model: Wholesale Price and Model Cost not including express cost. 3. Sample fees: Return to Money According to the actual sample fee. Just your requested quantity over 500 pcs, we will return your sample fee.

Q:What are the shipping methods available?

We offer shipping via UPS, DHL, FEDEX, EMS, TNT, ARAMEX, and other carriers.