Quick answer: the top-ranked inspection chamber brands in China on this list are LESSO (Guangdong), WENYUAN (Shandong) and Zhong Cai Guan Dao (Zhejiang). 3 Chinese brands are ranked by registration, contact and product data; 10 companies are listed in total. Updated 21 Oct 2026.
Ranked inspection chamber brands
How this list is ranked- 01
LESSO
联塑LESSO
- Inspection chambers
- Aluminum plastic composite pipes
- Plastic pipes / water pipes
Registered legal entity on file; email and phone published; operating since 1996.
View profile → - 02
WENYUAN
文远环保WENYUAN
- Inspection chambers
- Steel-belt reinforced corrugated pipes
- Medical Wastewater Treatment Equipment
Registered legal entity on file; phone published; operating since 2011.
View profile → - 03
Zhong Cai Guan Dao
中财管道
- Inspection chambers
- Aluminum plastic composite pipes
- Plastic pipes / water pipes
Registered legal entity on file; phone published.
View profile →
More Inspection chambers brands and companies
| Brand | Registered company | Website |
|---|---|---|
| Peng Zhou Su Ye鹏洲塑业 | 山东鹏洲塑业有限公司 | pengzhouplas.com |
| Bao Jing宝井 | 四川宝井科技有限公司 | — |
| HiPPO河马井HiPPO | 江苏河马井股份有限公司 | — |
| Jin Cheng锦程 | 杭州锦程实业有限公司 | — |
| Pu Dun普顿 | 昆明普尔顿环保科技股份有限公司 | — |
| Sheng Shi Jin Jing盛世金井 | 河北盛世金井塑业有限公司 | — |
| Shui Gong Pai水工牌 | 辽宁衍水水工水泥制品集团有限公司 | — |
Comparison table
| # | Company | Province | Est. | Registered company |
|---|---|---|---|---|
| 01 | LESSO联塑LESSO | Guangdong | 1996 | 广东联塑科技实业有限公司 |
| 02 | WENYUAN文远环保WENYUAN | Shandong | 2011 | 山东文远环保科技股份有限公司 |
| 03 | Zhong Cai Guan Dao中财管道 | Zhejiang | — | 浙江中财管道科技股份有限公司 |
Frequently asked questions
How many inspection chambers manufacturers and suppliers in China are listed here?
10 companies are listed for inspection chambers (检查井). 3 Chinese manufacturers have full profiles and are ranked.
Where are China's inspection chambers manufacturers located?
Among profiled companies: Guangdong (1), Shandong (1), Zhejiang (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, 4 have an official website and 1 publish an email address.