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42CrMo4 Steel Ring Forging Shot Blasting Surface Treatment CNC Machining Quenching Tempering Wear Resistant Industrial Component
US$10.00
100-499 kg
US$5.00
500-999 kg
US$3.00
1,000+ kg
Sample price:US$1.00/piece.Request sample
Product profile
Customization
AvailableProcessing Object
MetalMolding Style
ForgingMolding Technics
Pressure CastingApplication
HardwareMaterial
Aluminum, Stainless Steel, Alloy Steel, SuperalloyHeat Treatment
QuenchingSurface Treatment
PolishingForging Tolerance
+/-0.1mmStandard
International StandardCertification
CE, RoHS, ISO 9001:2000, ISO 9001:2008Transport Package
Wooden Box PackingSpecification
CustomizedTrademark
ChangjinOrigin
ChinaKey features
Extensive Material Range: Offers carbon steel, alloy steel, stainless steel, nickel alloys, titanium, and superalloys.
Customizable Size Specifications: Fully customizable outer diameter, height, and wall thickness based on customer drawings.
Large Size Capability: Maximum outer diameter 10000mm+, height 2000mm, and single item weight up to 50 tons.
Multiple Processing Options: Available as forged, rough machined, semi-precision machined, or fully machined rolled rings.
International Certifications: Certified with CE, RoHS, ISO 9001:2000, and ISO 9001:2008 standards.
Fast Stock Delivery: Stock material delivery time is just 3-5 working days.
Quality Assurance Guarantee: Provides MTC, SGS, UT certificates and full payment refund if quality is unapproved.
Company profile

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Full Customization, Flexible customization, etc. CertifiedExport Year: 17 Years CertifiedNearest Port: Shanghai PortAverage Response Time: ≤11.02h CertifiedTerms of Payment: LC, T/T, D/P, etc.
AI-Powered supplier vetting
SummaryThe supplier is identified as a Shanghai-based trading company with factory-related resources, more than 10 production lines, 31–40 quality-control staff, ISO 9001:2015 certification, and access to over 200 supporting enterprises. It reports in-stock service capability and lead times within 15 workdays to one month, but has no overseas warehouse, showroom, agent, branch, or overseas service coverage. After-sales complaint handling has a clear procedure and records, while supplier-service corrective/preventive actions lack written procedures or records. The supplier does not provide ODM, SDK, or popular-brand OEM services, and its R&D function is limited to one engineer with the general manager responsible for technical support. Financial information is inconsistent and insufficient for a reliable credibility assessment. No customer cases or named brand references are provided.
Supplier typeThe supplier is explicitly classified as a trading company in Shanghai and describes coordinating CNC, stock, logistics, and processing through more than 200 supporting enterprises. It also reports factory-related resources, including more than 10 production lines, but the supplied information does not establish that it directly owns or operates those production assets.
CertificationsThe supplier holds an ISO 9001:2015 certificate. This is explicit evidence of a quality-management-system certification, although no additional certifications are listed.
After-Sales capabilityThe supplier has a clear customer-complaint procedure with follow-up records, in-stock service capability, and stated lead times within 15 workdays to one month. However, it lacks overseas warehouses, showrooms, agents, branches, and overseas service coverage, while its corrective and preventive action mechanism for service capability has no written procedures or records.
Production capacityThe supplier reports more than 10 production lines, 31–40 quality-control staff, over 200 qualified service-capability suppliers, and lead times within 15 workdays to one month. Because it is classified as a trading company and the relationship to the reported production lines is not clarified, the evidence supports access to production resources but not clearly owned manufacturing capacity.
Customization capabilityThe company describes CNC and value-added processing services, but explicitly states that it does not provide ODM services, popular-brand OEM services, or an available SDK. This shows some processing-related service capability but no confirmed product-development or formal customization capability.
Product Q&A
Q:How long is the shortest delivery time?
A:
For stock material, the delivery time is just 3-5 working days. For customized products, it takes 25-35 working days based on different size and quantity.
Q:Can you supply samples? Are they free?
A:
For partial materials, we can supply samples free (without the freight charge). Please contact our sales online for more details.
Q:What are the terms of payment?
A:
We can accept T/T, 100% irrevocable LC at sight, Western Union, etc.
Q:How do you ensure quality?
A:
We supply QC documents such as MTC, SGS, and UT Certificates. We also have Trade Assurance Amount from the Group. If quality is unapproved, we will refund full payment.
Q:How can we get your price?
A:
We need the following information to quote: 1. Product Name, 2. Standard, 3. Material Grade (Chemical Composition), 4. Dimension, 5. Quantity, 6. The Drawing for Special Parts.
Send Inquiry
*To:
Shanghai Changjin Metal Product Co., Ltd.
Shanghai Changjin Metal Product Co., Ltd.*Content:
Supplier replies will be sent to your registered email
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