What is the warranty or quality guarantee?

We have ISO9001:2008 certification and perform 100% inspection on all products.

What is the main material of the plunger?

The main material is stainless steel.

Good Reviews Stainless Steel Knurled Knob Hand Retractable Spring Plunger with Locking Handle

Name: Good Reviews Stainless Steel Knurled Knob Hand Retractable Spring Plunger with Locking Handle
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 2181082105

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$2.34

200 pieces

Product profile

Customization

Available

Material

Stainless Steel

Application

Industrial Equipment

Model NO.

ZLYFM

Selling Units

Single Item

Single Gross Weight

0.050kg

Keyword

Spring Ball Plunger

Size

Ball Plunger

Sample

Avaliable

Single Package Size

13.5X8.5X9.5.Cm

Surface Treatment

Black Oxide

Ype

Retractable Spring Plunger

Name

Retractable Spring Plunger

Packing

Carton

Product Name

Spring Ball Plunger

Quality Control

100%Inspection

Certificate

ISO9001:2008

Trademark

Origin

Guangdong, China

Key features

Stainless Steel Material: Constructed from durable stainless steel for industrial equipment applications.

OEM/ODM Customization: Supports full customization from samples, designs, and minor adjustments.

ISO9001 Certified: Manufactured under ISO9001:2008 quality control standards with 100% inspection.

Fast Delivery: Standard delivery time is 7 to 15 days for quick order fulfillment.

Low MOQ: Minimum order quantity is just 1 piece, suitable for small batches.

Flexible Payment: Accepts T/T, PayPal, Western Union, and LC for convenient transactions.

Professional Manufacturer: Established in 2011 with 11 years of export experience and 12 production lines.

Free Samples: Provides free samples to help customers evaluate product quality before ordering.

Company profile

In-stock CapacityFast DeliveryYears of Export ExperienceCustomization from Designs

Dongguan Zhengchen Hardware Co., Ltd.

Guangdong, China

Business Type: Manufacturer/Factory CertifiedR&D Capacity: ODM Service Available & OEM Service Available CertifiedCustomization Options: Customization from Samples, Customization from Designs, etc. CertifiedExport Year: 11 years CertifiedNearest Port: Shenzhen PortAverage Response Time: ≤4.21h

AI-Powered supplier vetting

SummaryThe supplier is identified as a factory in Dongguan operating in manufacturing. It demonstrates substantial customization, OEM and ODM capabilities, independent R&D activity, and six R&D engineers responsible for technical support and new product development. Manufacturing support includes valid contracts with related subcontractors, inventory capability, and stated peak- and off-season lead times within 15 working days. Quality and service processes are documented, including finished-product inspection, corrective and preventive actions, and complaint handling. The supplier has exported for 11 years, with exports representing 11%–20% of total sales, and is located near Shenzhen Port. Evidence is insufficient to confirm certifications, detailed after-sales performance, or financial credibility. The supplier lacks an available SDK, overseas warehouse, and overseas showroom.

Supplier typeThe supplier is explicitly identified as a factory located in Dongguan, and its associated companies operate in manufacturing. This supports classification as a manufacturing supplier rather than a trading-only company.

After-Sales capabilityThe supplier has six R&D engineers whose responsibilities include technical support for production and after-sales service. It also has documented complaint-handling and corrective/preventive-action procedures with records, but no specific after-sales service performance or coverage details are provided.

R&D capabilityThe supplier reports new products in the past year, provides ODM services, and has an independent R&D department. Six R&D engineers handle technical confirmation, production and after-sales support, and new product development; however, no SDK is available.

Production capacityProduction support is evidenced by six quality-control staff, four quality-control test equipment units, valid contracts with associated subcontractors, inventory capability, and stated lead times within 15 working days in both peak and off seasons. The supplier also reports 172 qualified service-capability suppliers, although detailed production capacity volumes are not provided.

Customization capabilityThe supplier explicitly offers customization from samples and designs, full, minor, and flexible customization. It also provides customized processing of non-standard parts and OEM one-stop solutions, demonstrating broad customization coverage.

Client casesThe supplier states that it provides OEM services for well-known brands and describes delivering complete solutions and non-standard-part processing for customer needs. No named customers, project examples, or independently verifiable case details are supplied.