What are your terms of payment?

PAYMENT BY T/T IN ADVANCE, West union, Paypal and etc.

Are customized products accepted?

You idea and imagine, we design and make. It is fully self-customized.

Any discount possible if I place an order?

Yes, we have different price ranges (discounts) according to your quantities. You can consult us anytime.

How is shipping handled for samples vs mass orders?

For samples or small orders, delivered by express (DHL, UPS, FedEx, etc.). For mass orders, optional with terms of Ex-work, FOB by air or sea based on buyer's forwarder. We can also offer cheap cost from local forwarders to save shipping costs.

Double Ended Ball Plunger Spring

Name: Double Ended Ball Plunger Spring
Brand: Dongguan Zhengchen Hardware Co., Ltd.
SKU: 947985335

Guangdong, ChinaDongguan Zhengchen Hardware Co., Ltd.

US$0.10

1,000 Pieces

Sample price:US$10.00/piece.Request sample

Product profile

Customization

Available

Type

Plunger

Transport Package

Plastic

Model NO.

DUBE

Specification

BSZP5 6 8 10 12

Trademark

Origin

China

Key features

Full Customization Support: Accepts full customization from samples, designs, or your own ideas for unique plunger requirements.

Premium Material Options: Manufactured using high-quality stainless steel and carbon steel with surface treatments like galvanized or yellow zinc plated.

100% Manufacturer Direct: Direct factory sales from Dongguan with 100 staff and 12 production lines ensuring quality and competitive pricing.

Strict Quality Control: Every piece undergoes visual and function inspection by 6 QA inspectors before packing to ensure 100% quality assurance.

Flexible Shipping Solutions: Offers express delivery for samples and sea/air freight for mass orders via FOB, CIF, or EXW terms to save costs.

ISO9001 Certified Quality: Operates under ISO9001:2015 management system with 11 years of export experience and reliable supply chain.

Competitive Pricing & Discounts: Provides tiered discounts based on order quantities and offers cost-effective shipping options through local forwarders.

Fast Delivery Guarantee: General delivery time is 15-30 days, with peak and off-season lead times within 15 workdays for urgent orders.

Company profile

In-stock CapacityFast DeliveryYears of Export ExperienceCustomization from Designs

Dongguan Zhengchen Hardware Co., Ltd.

Guangdong, China

CertifiedBusiness Type: Manufacturer/Factory & Trading Company 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: ≤5.14h

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.

Product Q&A

Q:How long is your delivery time?

Generally our delivery time is 15 to 30 days. But different products and quantities have different procedures and timing. We promise that we'll try our best to finish your orders within the shortest time. For more information, please contact us.

Q:Is the MOQ fixed?

For most orders, the MOQ can't be lowered according to the required quantities. For stock items, the quantities can be negotiated.

Q:What is the Surface Treatment?

Galvanized, Yellow zinc plated, H D G.

Q:What is your material?

Stainless steel and carbon steel. It also can according to your requirements.

Q:Do you provide samples?

Yes.