21020-4
Suspension
RV&Trailer Leaf Spring
Trailer Parts
5
Peening & Electrophoresis Painting
ISO/Ts16949
2
New
Free on-Line Technical
15 Months
Customized (Black, Grey, Dacromet)
CDXS
in Pallets
Made in China
7320102000
Product Description

Product Details
Product name | Trailer Leaf Spring |
Total leafs | 5 PCS |
Components | Leaf, Bushing, Clips/Clamps, Center bolt, nut, Rivet |
Materials | SUP7, SUP9, SUP9A, SUP10, SUP11A |
Color | Customized (Black, Grey, Dacromet) |
Processing technology



Cutting & Punching Rolling eye Heat treatment |



Shot peening Assembling Electrophoretic painting |



Laser marking Finishing packing Delivery |
Quality control



IATF16949 ISO14001 BV |

Spectrometer: This crucial material inspection equipment detects whether the chemical composition of raw materials meets incoming material acceptance standards.

Universal testing machine: Essential for raw material performance testing, it evaluates tensile strength, yield strength, elongation, and area shrinkage of products with precision.

Metallography: Post-heat treatment samples are scrutinized under a microscope to observe quenching and tempering structures, ensuring the heat treatment process meets stringent qualifications.

Three coordinates: Provides spatial dimension detection, digital model dimension verification, and accurate appearance dimension measurement for flawless quality control.

Bench testing machine: Independently developed and manufactured, this machine measures product dimensions while testing stiffness. It also verifies product assembly fatigue life and the fatigue life of the spring eye.
Packing & Shipping

FAQ
Q: Can you design and develop according to customer needs?
A: Absolutely! We offer both ODM and OEM services and have successfully delivered hundreds of new products to customers domestically and internationally.
Q: How do you ensure your quality?
A: We meticulously adhere to the IATF16949 quality management system. From raw materials to finished product testing, we employ professional testing methods and equipment, issuing factory inspection reports to guarantee superior quality.
Q: Can we print our own logo or label on the springs?
A: Certainly! We support logo printing, label printing, and stamping to meet your branding needs.
Q: What is your MOQ?
A: For common material sizes, the MOQ is 50 pieces. For special material sizes, the MOQ is 5 tons or more.
Q: Is it possible to have a sample for quality testing?
A: Yes, simply provide the detailed specifications, and we will supply a sample for you.
A: We accept T/T, L/C, and Cash payments.
Q: Can you design and develop according to customer needs?
A: Absolutely! We offer both ODM and OEM services and have successfully delivered hundreds of new products to customers domestically and internationally.
Q: How do you ensure your quality?
A: We meticulously adhere to the IATF16949 quality management system. From raw materials to finished product testing, we employ professional testing methods and equipment, issuing factory inspection reports to guarantee superior quality.
Q: Can we print our own logo or label on the springs?
A: Certainly! We support logo printing, label printing, and stamping to meet your branding needs.
Q: What is your MOQ?
A: For common material sizes, the MOQ is 50 pieces. For special material sizes, the MOQ is 5 tons or more.
Q: Is it possible to have a sample for quality testing?
A: Yes, simply provide the detailed specifications, and we will supply a sample for you.
A: We accept T/T, L/C, and Cash payments.