How do you ensure product quality?

All processes strictly follow ISO9001 procedures. We perform 100% inspections and provide digital progress reports via email.

What is the warranty and after-sales service?

We provide reliable after-sales service with timely support. We strictly produce according to samples/drawings to ensure 100% satisfaction.

Trailer Accessories

Name: Hot-DIP Galvanized Trailer Bow Leaf Spring for Truck Chassis/Boat/Trailer Accessories
Brand: Weifang Shengao Machinery Co., Ltd.
SKU: 694813302

Shandong, ChinaWeifang Shengao Machinery Co., Ltd.

US$29.00-39.00

100 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

After-sales Service

as Specification

Warranty

as Specification

Model NO.

WF-SA

Material

Carbon

Certification

ISO10012, BSCI, GMP, GSV, ISO13485, OHSAS18001, ISO14001, ISO/TS16949, ISO9001

Suitable for Car Brands

Volkswagen, WuLing, Benz, BMW, Hyundai, Honda, Toyota, Jeep, Nissan, Ford, Buick, Chery, Chevrolet, Cadillac, Geely, Roewe, Peugeot, Lexus, Volvo, Mazda

Position

Rear

OEM

Yes

Type

Leaf Spring Suspension

Item

Leaf Spring

Brand Name

Shengao, OEM

Size

as Your Requirement

Raw Material

Steel

Surface Treatment

Black Finish

Factory

Over 15 Years Experience in Producing

Logo

Customized Logo Is Available

Quality Control

100% Inspected

Price Range

1~50USD/PCS

Sample Delivery Time

7-10 Days, Per Products.

OEM Service

Yes

Custom Made

Yes

Logo Printing

Customized

MOQ

10-1000PCS

Free Sample

Yes

Transport Package

Plywood Box

Specification

Customization Size

Trademark

Shengao

Origin

Weifang City, Shandong Province, China

HS Code

87089910

Production Capacity

50000PCS/Month

Key features

Custom OEM/ODM Service: Full customization available including size, material, color, and logo printing based on customer requirements.

High-Quality Steel Material: Made from premium alloys like 65Mn, 60Si2Mn, and SUP9 for excellent durability and corrosion resistance.

Heavy-Duty Construction: Designed for exceptional durability, load bearing capacity of 500kgs-2000kgs, and smooth ride on uneven surfaces.

Strict Quality Control: 100% inspected with ISO9001 certified processes, ensuring high precision and adherence to drawings.

Flexible MOQ Options: Low MOQ starting from 10-1000 pieces or 1-3 tons, accepting trial orders before mass production.

Fast Sample Delivery: Sample delivery time is 7-10 days, with free samples available for verification.

Professional Technical Support: 15+ years factory experience providing custom design suggestions, progress reports, and after-sales service.

Company profile

Importers and ExportersHigh Repeat Buyers Choice

Weifang Shengao Machinery Co., Ltd.

Shandong, China

Business Type: Manufacturer/Factory CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc.Export Year: 2010-04-06 CertifiedNearest Port: Qingdao PortAverage Response Time: ≤2.40h CertifiedTerms of Payment: LC, T/T, D/P, etc.

AI-Powered supplier vetting

SummaryWeifang Shengao Machinery Co., Ltd. is a limited company focused on mechanical parts, hardware, metal tools, CNC machine tools, and related components. It identifies as a professional technical supplier and offers 3D software design and broad customization services, including sample-, design-, full-, minor-, and flexible customization. The supplier has written procedures and records for service assessment, corrective actions, and complaint handling. Its export sales share is stated at 71%–90%, with three years of export experience. However, the supplier has nine employees, only two years of total R&D engineer experience, no new products in the past year, no ODM, SDK, or overseas service infrastructure, and no stated customer cases. Audit information is provided for a TUV Rheinland audit with a validity period from September 4, 2025 to September 3, 2026, but the evaluation result is recorded as 0 and no certification name is specified.

Supplier typeThe supplier explicitly identifies as a professional technical supplier and a limited company. Its stated business and product scope covers mechanical parts, hardware products, metal tools, CNC machine tools, functional components, forgings, and powder metallurgy products; the audit record identifies mechanical parts as the primary product.

After-Sales capabilityThe supplier has clear written procedures and followed records for corrective and preventive actions and for handling customer complaints. This directly supports an established service-response process, although the slices do not provide service performance results or response-time data.

Production capacityThe supplier reports an annual production output range, six to ten quality-control staff, on-time delivery, random production quality inspection, and its own factory. It has nine total employees, so the available evidence supports an operating production capability, while capacity beyond the stated output range cannot be determined.

Customization capabilityThe supplier explicitly offers customization from samples, customization from designs, full customization, minor customization, and flexible customization, and also welcomes OEM and ODM requests according to its company description. These repeated statements provide direct evidence of broad customization coverage, although the separate record states that ODM is not available, creating a conflict on ODM specifically.