# Nanjing Qiniu Technology Development Co., Ltd.

Custom Silicone and Rubber Components, Factory Direct

ISO 9001:2015-certified manufacturer supplying OEM buyers and wholesalers in the US, EU, and AU/NZ with precision-molded silicone parts built to specification.

- Canonical: https://catalog.reevol.com/p/marketing/nanjingqiniu
- Language: en
- Last updated: 2026-08-27

## Supplier facts

- Supplier type: manufacturer
- Export markets: US, EU, AU/NZ
- HS codes: 4016.93, 4008.21, 4009.11, 3926.90
- Product categories: Silicone Rubber Sheets and Tubes, Sealing Rings and Gaskets, Pet Silicone Accessories, Solar Energy Accessories, Medical-Grade Silicone Components, Electrical and Electronic Silicone Accessories, New Energy / EV Battery Silicone Parts, Wastewater Treatment Membrane Accessories, Fire-Protection Pipe Clamp Accessories, Communication Equipment Seals, Daily-Use Silicone Products

## Certifications

- ISO 9001:2015: supplier-declared, pending confirmation
- Golden Sun Certified Supplier, Silicone Sealing for Solar Water Heaters: supplier-declared, pending confirmation
- FDA food-grade: supplier-declared, pending confirmation
- RoHS: supplier-declared, pending confirmation
- REACH: supplier-declared, pending confirmation
- UL94 V-0 (flame retardant): supplier-declared, pending confirmation

## Product Categories (6)

### Silicone Sheets and Tubes
Thickness 0.5, 20 mm, width up to 2 m, length up to 50 m; operating range -60°C to 250°C (short-term 300°C); FDA food-grade blue silicone roll available in glossy or matt finish, custom-cut to size.
- High-temperature resistant silicone sheet / rubber pad
- FDA food-grade blue silicone roll (glossy or matt)

### Sealing Rings and Gaskets
Precision-molded sealing rings and gaskets with dimensional tolerance ±0.1 mm and service life ratings up to 8+ years; Shore A hardness and tensile strength specified per application.
- Solar water heater 4-point heat-locking sealing ring (Shore A 40±2; tensile strength ≥6.0 MPa; elongation ≥380%)
- Silicone rubber sealing cover for electric heating tank (-20°C to 95°C; service life >8 years)
- Communication equipment seals
- Fire-protection pipe clamp sealing accessories

### Medical-Grade Silicone Components
Biocompatibility-compliant medical-grade silicone parts produced direct from manufacturer; suitable for contact and near-patient applications.
- Medical gloves
- Knobs and button covers
- Camera rings
- Medical sealing rings

### New Energy / EV Battery Silicone Parts
Flame-retardant V-0 grade silicone frames for EV and new-energy battery packs; aging-resistant and shock-absorbing construction.
- EV battery flame-retardant silicone frame (UL94 V-0)

### Solar Energy Accessories
Golden Sun certified silicone fittings and seals for solar water heater systems, engineered for thermal cycling resistance and long service life.
- 4-point heat-locking sealing ring
- Electric heating tank sealing cover

### Industrial, Electronic, and Specialty Silicone
Broad range of application-specific silicone components for wastewater treatment membranes, electrical and electronic housings, pet accessories, and daily-use products; OEM specifications accepted.
- Wastewater treatment membrane accessories
- Electrical and electronic silicone accessories
- Pet silicone accessories
- Daily-use silicone products

## FAQ

**Is Nanjing Qiniu a manufacturer or a trading company?**

Nanjing Qiniu Technology Development Co., Ltd. is a direct manufacturer. Vulcanization and injection-molding equipment are operated in-house in Nanjing, China. There is no trading intermediary between the factory and the buyer.

**Which certifications cover the silicone products?**

The quality system is certified to ISO 9001:2015. Food-contact silicone is FDA-compliant. Electronic and EV components meet RoHS, REACH, and UL94 V-0 flame-retardant requirements. Solar water heater accessories carry the Golden Sun certified supplier designation. Buyers should request the relevant certificate copies at the time of inquiry to confirm scope.

**What HS codes apply to these products?**

The primary export HS codes are 4016.93 (other articles of vulcanized rubber), 4008.21 (plates, sheets, strip of non-cellular rubber), 4009.11 (tubes, pipes and hoses of vulcanized rubber), and 3926.90 (other articles of plastics). Buyers should confirm classification with their customs broker, as final determination depends on end-use and destination country.

**Can parts be manufactured to custom dimensions or specifications?**

Yes. Silicone sheets and rolls are available in buyer-specified thickness (0.5, 20 mm), width (up to 2 m), length (up to 50 m), and finish (glossy or matt). Sealing rings and other molded parts are produced to buyer-supplied drawings or samples. OEM tooling inquiries are accepted.

**Which markets does Qiniu currently supply?**

Qiniu exports to buyers in the United States, the European Union, and the Australia/New Zealand region. Wholesalers and OEM manufacturers in those markets are the primary buyer types served.

**How do I request pricing or samples?**

Submit the inquiry form on this page with your company name, target product or category, required specifications, and destination country. The Qiniu sales team will respond with pricing, available certifications, and sample options based on your requirements.

## Contact

- Inquiry endpoint (POST form): https://catalog.reevol.com/api/marketing/inquiry/nanjingqiniu