What is the minimum order quantity?

The minimum order is 4 pieces for custom models, though 40 wheels per part number is acceptable for production.

What certifications do your wheels have?

Our wheels are certified by ISO, VIA, CE, TUV, DOT, and SGS.

How long is the delivery time?

Delivery time is 15-20 business days, with peak season lead time of 1-3 months and off-season within 15 workdays.

Custom Forged Wheels 21" Et30 Mag Alloy Rims 139.7mm PCD

Name: Custom Forged Wheels 21" Et30 Mag Alloy Rims 139.7mm PCD
Brand: SINO ZHENG INDUSTRIAL INC.
SKU: 790378972

Henan, ChinaSINO ZHENG INDUSTRIAL INC.

US$169.00-599.00

4 Pieces

Sample price:US$289.00/piece.Request sample

Product profile

Customization

Available

Material

Magnesium Alloy

Type

Wheel Hub

Drive Wheel

4WD

Wheel Hub Diameter

16-20"

Finishing

Customized

Wheel Accessories

Customized

Certification

ISO, VIA, CE, TUV, DOT, SGS

Wheel Hub Brand

Sinomagnesium

PCD

100mm, 108mm, 112mm, 114.3mm, 115mm, 120.65mm

Et

10 - 50mm

Hole

4/5/8/10

Width

13j - 22j

Finish Process

Painting, Wire Brush, Polish, Chrome

MOQ

4 Piece

CB

73.1 - 30.8

Delivery Time

15-20 Business Days

Transport Package

Carton Box

Trademark

SINOMAGNESIUM

Origin

Zhengzhou China

HS Code

87087091

Production Capacity

2, 000, 000 Piece/Year

Key features

Superior Lightweight Design: Magnesium alloy wheels are 20-25% lighter than aluminum, improving fuel efficiency and handling.

Enhanced Strength & Durability: Forged structure offers 1.5x strength over cast wheels, designed to bend without cracking.

Customizable Dimensions: PCD 98-139.7mm, ET 10-50mm, Width 13J-22J, and Hole patterns 4/5/8/10 fully customizable.

Premium Finishing Options: Available in Black, Chrome, Grey, Matt Black, and Silver with Painting, Wire Brush, or Polish.

Improved Vehicle Performance: Reduces fuel consumption by 10-18%, braking distance by 3%, and extends tire life by 4-5%.

Advanced Heat Dissipation: High thermal conductivity prolongs brake and suspension life by dissipating heat faster.

Comprehensive Certifications: ISO, VIA, CE, TUV, DOT, and SGS certified for global safety and quality standards.

Flexible MOQ Policy: Minimum order of 4 pieces accepted for custom models, with 70,000 units in inventory.

Company profile

Importers and ExportersFast DeliveryR&D Capabilities

SINO ZHENG INDUSTRIAL INC.

Henan, China

Business Type: Manufacturer/Factory, Trading CompanyExport Year: 2015-05-25Nearest Port: ZHENGZHOU, QINGDAO, SHANGHAIAverage Response Time: ≤6.21hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, CPT, EXW

AI-Powered supplier vetting

SummarySINO ZHENG INDUSTRIAL INC. is identified as both a trading company and manufacturer/factory in China, offering magnesium wheels, welding wire, heatsinks, anodes, plates, and related products. It reports ISO 9001 and ISO 14001 certifications, more than 10 production lines, 6–10 R&D engineers, and 6–10 quality-control staff. Export activity is established, with 71%–90% of sales from exports, self-operated import/export rights, exports beginning in 2015, and markets across the Americas, Europe, and Southeast Asia. Product descriptions and company information indicate technical expertise in magnesium materials and welding processes. However, overseas service infrastructure, 3D design, OEM/ODM, after-sales capability, and customization are not sufficiently documented. The audit record identifies BV, but the stated evaluation result is 0, which should be treated cautiously.

Supplier typeThe supplier is explicitly classified as both a Trading Company and Manufacturer/Factory, indicating combined commercial and manufacturing functions. Its listed product portfolio is centered on magnesium products.

CertificationsThe supplier lists ISO 9001 and ISO 14001 management-system certifications. A BV audit is also recorded with validity from September 10, 2025 to September 9, 2026, but the audit evaluation result is stated as 0, so the audit outcome itself does not provide positive assurance.

R&D capabilityThe company describes technological, product, and process innovation, including a one-time extrusion process for 1.2 mm magnesium welding wire and efforts to expand magnesium applications. It also reports 6–10 R&D engineers, but 3D design, new-product development status, ODM, and OEM capabilities are marked unknown.

Production capacityThe supplier reports more than 10 production lines, 6–10 quality-control staff, and stated output for magnesium welding wire and forged magnesium wheels. It also reports off-peak lead times within 15 working days and peak-season fulfillment of 2–3 months, supporting an established production operation, although the production figures should be interpreted as self-reported.

Client casesTwo records identify the same buyer, CÔNG TY CỔ PHẦN HUY MINH, associated with specified cathodic-protection alloy products imported into Vietnam. These records provide evidence of an associated buyer and product transactions, but they do not establish the scale, duration, performance, or breadth of customer references.

Product Q&A

Q:Can I order one set for private use?

Sure, we can provide the suitable wheels as your car mold.

Q:How can I buy them?

Please let me know your demand, and we will quote you asap. After your confirmation, we will draft the contract on Made-in-China with the trade assurance.

Q:Can I pay on other methods?

Yes, you can pay on any other way you like, but when you pay on paypal, we charge extra 4.3%.

Q:How do you deliver them, will it be expensive?

We will deliver them by express directly to your address. To save your cost of freight, we can get speciall discount from DHL,TNT,Fedex, because we are VIP.

Q:What are the available PCD options?

We accept customization of PCD from 98mm to 139.7mm, suitable for most cars.