Process: Forming Process
Industry: Customized Based on Customer's Needs
Tolerances: Customized According to Requirements
Customized: Yes, We Offer Custom Solutions
Trademark: KC
Transport Package: Customized Packaging as Per Your Needs
Specification: Customized Based on Client Drawings
Origin: China
Process: Forming Process
Industry: Customized Based on Customer's Needs
Tolerances: Customized According to Requirements
Customized: Yes, We Offer Custom Solutions
Trademark: KC
Transport Package: Customized Packaging as Per Your Needs
Specification: Customized Based on Client Drawings
Origin: China
Product Description:1. ODM & OEM services are available
2. Compatible software includes Solidworks, Pro/Engineer, AutoCAD, PDF, JPG
3. Customization is welcome
4. Competitive pricing based on your drawings
| Material Option | Stainless steel, copper, carbon steel, aluminum, brass (as per customer requirements) | ||||||||
| Wire Diameter | ø0.10-ø4.50mm | ||||||||
| Customizable | Customized drawings and samples | ||||||||
| Surface Treatment | Hot galvanized, polishing, chrome/zinc/nickel plating, passivating, powder coating, anodize, electrophoresis, or as per customer needs | ||||||||
| Application | Hardware, aviation, motorbike, bicycle, furniture, plastic parts, toy, automotive, electronic communication, lamps, clamps, switches, mirrors, gifts, medical equipment, molds, home appliances, electronics, cameras, printers, and other industries | ||||||||
| Processing Craft | Stamping → Secondary Stamping → Punching → Threading → Burring → Welding → Polishing → Paint Spraying → Checking → Packaging → Shipping | ||||||||
| Heat Treatment | Stress relieving, tempering, quenching, carburizing | ||||||||
| Equipment | CNC stamping/punching machine, CNC bending machine, CNC cutting machine, 30-400-ton punching machines, inspection equipment, testing equipment | ||||||||
| Inspection | IQC, IPQC, FQC, QA | ||||||||
| Certification | ISO 9001, SGS, RoHS, TS14969, ISO13485, ISO14001 | ||||||||
| Lead Time | 5-20 working days based on MOQ | ||||||||
| Package | PE bags, cartons, pallets, blister boxes, customized designs and specifications accepted | ||||||||
| Type of Shipping | International express via DHL, UPS, FedEx, etc., FOB HK or Shenzhen | ||||||||
| Payment Term | Telegraphic Transfer (TT), Advance TT, T/T | ||||||||
| Warranty | 100% return goods or refund if quality issues arise | ||||||||
Our Advantage
1. Strong relationships with clients
2. 48 years of production experience
3. Over 20 experienced R&D staff
4. Professional metal manufacturer offering competitive prices
5. Skilled workers with diverse experience
6. Compliant with ISO standards
7. Wide range of products
8. OEM/ODM capabilities
9. Quick quotation for your inquiry
10. Fast sampling process
11. Passed SGS certification
12. Strict quality control
PO → Material Purchased → Machine Adjusted → Inspection → Coiling/Stamping/Turning → First Testing → Heat Treatment → Cleaning → Surface Treatment → OQC → Packing → Shipping
Our Company
Founded in 1970, Cailong Metal Spring Mfg. Co. Ltd (a subsidiary of Kowloon International Industries Co., Ltd) is a leading manufacturer of precision springs and metal solutions. With over 48 years of experience, we have been a strategic supplier of custom springs, progressive stampings, machined components, and assemblies. Our 25,000 square meter factory has around 350 employees. We serve OEMs across various industries including medical, automotive, and consumer products. As a comprehensive solution provider, we collaborate with our customers throughout the entire product development lifecycle.
What sets us apart is our extensive experience and capability in developing innovative springs and complex wire forms. We provide top-quality components and assemblies to help you create the perfect end product.
We strive to be more than just a supplier—we aim to be a trusted partner. Our commitment to customers is reflected in the numerous vendor appreciation and performance awards we've received over the years. Every day, we work to deliver attentive and immediate service, whether it’s collaborating on product development, providing quotations, responding to changing production needs, or keeping you updated on project progress.
Why Choose Us
1. KC, a subsidiary of Kowloon International Industries Co., Ltd, is a recognized leader in precision springs, progressive stampings, and machined components.
2. Established in 1970, we have over 40 years of experience in manufacturing. With high quality and competitive pricing, our products are sold worldwide, including in France, UK, USA, Australia, Germany, India, Denmark, Canada, Russia, China, and more.
3. We serve OEMs across multiple industries, including medical, automotive, and consumer products. As a comprehensive solution provider, we work closely with our customers at every stage of product development.
4. Our strength lies in our ability to develop innovative springs and precise complex wire forms. We provide top-quality components and assemblies so that you can achieve the best end product.
5. We warmly welcome customers to visit our company. Feel free to contact us if you have any questions—we will be your best private metal parts consultant.
Packing & Delivery
Packing Details: PE bags, cartons, pallets, blister boxes, or customized as per your requirements
Delivery Details: 15-20 days after sample confirmation
Payment Terms: For orders ≤ $1000, 100% advance payment; for orders ≥ $1000, 50% advance, balance before shipment. If you have any other questions, please feel free to contact us.
FAQ
1. How do you pack the goods?
The goods are first placed into plastic bags and then into shipping cartons. The size of the bags and cartons can be customized according to your needs.
2. What is the lead time for samples or mass production?
It depends on the order quantity and the season when the order is placed. Typically, samples take 5-15 days, and mass production takes 10-20 days. If urgent, delivery can be expedited.
3. What is the MOQ?
To start a good business relationship, the MOQ is 10,000 pieces.
4. What are your payment methods?
T/T, L/C
5. How can I get a sample for testing?
A. Free sample: We can send you free samples from stock, and you only need to arrange the shipping or pay the freight fee.
B. Chargeable sample: $100 for sample development, which can be refunded after mass production.
6. What is your nearest shipping port?
Shenzhen
7. How do you ensure quality?
QC teams conduct routine inspections every 30 minutes during production, prepare first article inspection reports, and perform checks before shipment.
8. What is your after-sales service?
We will update you on the production process every two days and offer 24-hour online support.
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