What is your packing?

Our usual packing for this product is pallet, we can also supply you packing according to your requirements.

Can we custom our own logo or label on this product?

Yes, you can. we support logo print & stamping & label print, print will be free if the logo is not very complex.

What about the warranty?

We are very confident in our products, and we pack them very well to make sure the goods in well protection. To avoid any subsequent trouble regarding quality issue, we suggest that you check the springs once you receive them. If there is any transport damaged or quality issue, don't forget take the detail pictrues and contact us as soon as possible,we will properly handle it, make sure your loss to reduce to the smallest .

11 Leaves 4" Wide - 1200 Length Capacity 30" Flat End Slipper Leaf Spring

Name: 11 Leaves 4" Wide - 1200 Length Capacity 30" Flat End Slipper Leaf Spring
Brand: Qingdao Jasmine International Trade Co., Ltd.
SKU: 2012043025

Shandong, ChinaQingdao Jasmine International Trade Co., Ltd.

US$35.00-38.00

100 Sets

Product profile

Loading Weight

25T

Material

60si2mn

Type

Suspension

Model NO.

4inch

PCS

3PCS

Certification

ISO/TS16949, ISO

ABS

Without ABS

Tent Type

Simple

Axle Number

Tire Number

Condition

New

After-sales Service

Yes

Warranty

6months

Color

Black

Transport Package

Pallet

Specification

Tra2161

Trademark

Origin

China

HS Code

7320102000

Production Capacity

50000PCS Every Month

Key features

ISO Certified Quality: Certified to ISO9001 and TS16949 international quality standards with strict QC systems.

Customization Options: Accepts customized products, logos, labels, and designs based on customer requirements.

Fast Stock Delivery: Ships in-stock items within 7 days after payment confirmation.

Competitive Pricing: Best prices offered based on order quantity with bulk discounts available.

Wide Model Range: Extensive TRA series models available including TRA2727, TRA699, and TRA2740.

Durable Material: Manufactured from high-quality 60si2mn steel for reliable suspension performance.

Flexible Customization: Supports full customization, minor customization, and customization from samples or designs.

Professional Support: Specialized factory with first-class techniques and equipment for high-quality output.

Company profile

Importers and ExportersHigh Repeat Buyers ChoiceYears of Export ExperienceExperienced Team

Qingdao Jasmine International Trade Co., Ltd.

Shandong, China

CertifiedBusiness Type: Trading Company CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 15 Years CertifiedNearest Port: Qingdao PortAverage Response Time: ≤3.50h CertifiedTerms of Payment: T/T, LC, D/P, etc.

AI-Powered supplier vetting

SummaryLiangshan Changzai Machinery Manufacturing Co., Ltd. is a China-based manufacturer of semi-trailer parts, including axles, suspension systems, leaf springs, landing gear, king pins, fifth wheels, brake chambers, air tanks, and twist locks. It reports ISO 9001:2015 certification, 10 production lines, 6–10 quality-control staff, and export activity since 2011 across multiple regions. Product customization is supported by R&D responsibilities, design software, and documented design review and validation records, but the supplier reports only one R&D engineer and no patents or available SDK. Overseas service infrastructure is limited, with no overseas showroom, agents, branches, or offline trade-show participation. Financial information is referenced by year but contains no financial performance figures, so credibility cannot be fully assessed. No specific customer cases are provided.

Supplier typeThe supplier is identified as a Chinese manufacturer specializing in semi-trailer parts and related mechanical equipment. Its stated product range includes axles, suspension, leaf springs, landing gear, king pins, fifth wheels, air brake chambers, air tanks, and twist locks, supporting classification as a specialized semi-trailer-parts manufacturer.

CertificationsThe supplier reports holding an ISO 9001:2015 management-system certificate. This is explicit certification evidence, although no additional certifications or certificate-scope details are provided.

After-Sales capabilityThe supplier has no overseas showroom, agents, branches, or reported offline trade-show participation, and lists zero countries with overseas services. It does report written service procedures with implementation records and service lead times within 15 working days, but the lack of overseas service infrastructure is an explicit limitation.

Production capacityThe supplier reports 10 production lines, 6–10 quality-control staff, and a broad semi-trailer-parts manufacturing scope. It also states one-month peak and off-peak fulfillment times in one record; another service-related record states lead times within 15 working days, creating some measurement-context ambiguity, but the production infrastructure is explicitly documented.

Customization capabilityThe supplier states that its R&D function develops new products according to customer requirements and maintains design documentation covering review, verification, and validation. This directly supports customer-specific development capability, although the R&D team is limited to one reported engineer.

Product Q&A

Q:What is the best price for this product?

We will quote the best price according to your quantity, so please let us know the quantity you want when making an inquiry. The more quantity, the better price.

Q:How about the quality of this product?

Our products are certified to ISO9001 and TS16949 international quality standards. We have very strict Quality Control Systems.

Q:What material of the product can you supply?

Steel.

Q:What is your MOQ?

10pcs for each model. We hope you can buy more to save more money.

Q:What is the delivery time?

For products that are in stock, we can ship it within 7 days after receiving your payment. For custom order, quantity within 24 tons, production time is 12-20 days after confirmed every details.