Quick answer: the top-ranked o-ring brand in China on this list is HILYWILL (Shandong). 1 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked o-ring brands
How this list is ranked- 01
HILYWILL 海力威HILYWILL
Registered as 青岛海力威新材料科技股份有限公司 in 2004.
- O-rings
- Oil seals
Why it ranks here: registered legal entity on file; email and phone published; operating since 2004.
International o-ring brands in China
Foreign-owned groups with Chinese manufacturing or sales companies. Listed separately so the ranking above covers Chinese manufacturers only.
- INT
Parker Parker派克
Registered as 派克汉尼汾流体传动产品(上海)有限公司 in 1996.
- O-rings
- Sealing rings
- Thermal Grease
- Pneumatic components
- Mold Release Agents
- Filters
Why it ranks here: registered legal entity on file; email and phone published; operating since 1917.
- INT
NOK-FREUDENBERG NOK-FREUDENBERG恩福
Registered as 恩福商业(上海)有限公司 in 2005.
- O-rings
- Oil seals
- Sealing components
Why it ranks here: registered legal entity on file; email published; operating since 1992.
- INT
SKF SKF斯凯孚
Registered as 斯凯孚(中国)有限公司 in 1997.
- O-rings
- Sealing rings
- Coupler
- Imported bearings
- Needle roller bearings
- Oil seals
Why it ranks here: registered legal entity on file; phone published; operating since 1907.
- INT
TRELLEBORG TRELLEBORG特瑞堡
Registered as 特瑞堡密封系统(中国)有限公司 in 2005.
- O-rings
- Sealing rings
- Rubber waterstops
- Sealing components
- Silicone Tubes
Why it ranks here: registered legal entity on file; phone published; operating since 1905.
More O-rings brands and companies
| Brand | Registered company | Website |
|---|---|---|
| COGCOG | C. Otto Gehrckens有限公司 | — |
| Ding Hu鼎湖 | 安徽中鼎控股(集团)股份有限公司 | — |
| Greene TweedGreene Tweed | 美国Greene Tweed公司 | — |
| Guo Ji Mi Feng国机密封 | 广州国机密封科技有限公司 | — |
| NOKNOK | NOK株式会社 | — |
Frequently asked questions
How many o-rings manufacturers and suppliers in China are listed here?
10 companies are listed for o-rings (O形圈). 1 Chinese manufacturers have full profiles and are ranked; 4 international brands with China operations are listed separately.
Where are China's o-rings manufacturers located?
Among profiled companies: Shanghai (3), Shandong (1), Beijing (1).
How is this list ranked?
By the completeness and verifiability of each company's data: a registered legal entity, an official website, published contact details, a product range and company history. The rank is not a quality rating, and no company pays for its position. See How we rank for the full method.
How do I contact these manufacturers?
Each listing shows the company's official website and, where published, its email and phone number. Of the 10 companies listed, 5 have an official website and 3 publish an email address.