What is your warranty and after-sales service policy?

We respond to any questions within 12 hours. We provide lifetime service, spare parts at half price, and repair services if problems cannot be solved locally.

Can you provide samples?

Yes, we provide sample production and service. Samples can be sent within 2 to 5 days.

What is the standard and non-standard size availability?

Standard and non-standard sizes are available, with thickness ranging from +/-0.01 mm to +/-3.05 mm.

Custom Waterproof NBR Viton Silicone Sealing O-Ring

Name: Custom Waterproof NBR Viton Silicone Sealing O-Ring
Brand: QILI HOLDING GROUP CO., LTD.
SKU: 873873625

Zhejiang, ChinaQILI HOLDING GROUP CO., LTD.

US$1.00-1.20

1 Piece

Product profile

Customization

Available

Material

EPDM,,Silicon,Viton

Application

Clamped Fittings and Valve

Model NO.

ALL SIZE

Type

O-Ring

Performance

High Pressure

Shape

O-Ring

Standard

Transport Package

Exporting Packing

Specification

Dn25-100 & 1"-4"

Trademark

QL, OEM&ODM

Origin

Wenzhou Zhejiang China

HS Code

8481804090

Production Capacity

500000/Month

Key features

Customizable Color: Colors include red, orange, yellow, green, blue, black, white, or according to customer requirements.

High Performance: Resistant to high pressure (>=30 Mpa), high speed (>=0.5 m/s), and wide temperature range.

Chemical Resistance: Resistant to various types of petroleum and a variety of chemicals for durable quality.

Certified Quality: Products certified with RoHS, FDA, and ISO:9001 standards for safety and reliability.

OEM/ODM Support: We can produce according to your samples or drawings to meet specific needs.

Versatile Applications: Suitable for automotive brakes, oil/gas machines, hydraulic cylinders, water pumps, and chemical equipment.

Fast Sample Delivery: Samples can be sent within 2 to 5 days via sea, air, or express shipping.

Company profile

QILI HOLDING GROUP CO., LTD.

Zhejiang, China

Business Type: Manufacturer/FactoryExport Year: 2006-01-01Nearest Port: Ningbo ,Shanghai,Shenzhen,QingdaoAverage Response Time: ≤24hTerms of Payment: LC, T/T, PayPal, etc.International Commercial Terms(Incoterms): FOB, CFR, CIF, EXW

AI-Powered supplier vetting

SummaryQILI HOLDING GROUP CO., LTD. is identified as a China-based manufacturer/factory with facilities in Wenzhou, Zhejiang. The supplied information indicates four production lines, 50 quality-control staff, 11–20 years of combined R&D-engineer experience, and reported annual production of 5,000,000 sanitary valve and fitting pieces. It holds ISO 9001 certification and describes multiple specialized workshops, including CNC machining, forming and polishing, hot forging, BPE fittings, and valve production. The company reports exporting to more than 60 countries since 2006, with exports representing 90% of total sales. It states that it provides design, manufacturing, sales, and after-service capabilities, although detailed after-sales procedures are not provided. Custom fitting production is explicitly mentioned. Available trade data records one transaction and one associated buyer, so customer-case evidence is limited.

Supplier typeThe supplier is explicitly identified as a Manufacturer/Factory and operates in manufacturing from an address in Wenzhou, Zhejiang, China. However, one record also classifies the company nature as a trading company, creating a conflicting secondary classification.

CertificationsThe supplier is explicitly reported to hold ISO 9001 certification, providing direct evidence of a certified quality-management system.

After-Sales capabilityQILI states that its capabilities cover sales and after-service and that it provides service to customers. The slices do not specify service channels, response times, warranty terms, or repair processes, so the stated capability is positive but not operationally detailed.

R&D capabilityThe supplier has 11–20 years of combined R&D-engineer experience and operates specialized workshops including CNC machining, hot forging, and fittings production. These facts support technical development capability, although no specific patented products or quantified R&D achievements are provided.

Production capacityThe supplier reports four production lines, 50 quality-control staff, and annual output of 5,000,000 sanitary valve and fitting pieces. Its described eight professional workshops and stated pre-delivery quality checks provide direct evidence of substantial manufacturing and quality-control capacity.

Customization capabilityThe company explicitly describes an Anhui mass-production base with CNC machining and the ability to make custom fittings. This directly supports customization capability for fitting-related products.

Client casesThe supplier states that its products are exported to more than 60 countries and lists multiple export markets; one associated buyer, LES INSTRUMENTS PITANCO INC, and one trade transaction are also recorded. These references indicate international customer exposure, but the named customer evidence and transaction history are limited.