Recently, the concrete manhole series produced by Xianghui (Hainan) Cement Products Co., Ltd. successfully passed all annual tests conducted by Hainan Fangyuan Construction Engineering Testing Co., Ltd. All indicators meet relevant standard requirements. The company has obtained the official test reports; report numbers and detailed results are subject to the final documentation.
I. Overview of Detection
This inspection was conducted by Hainan Fangyuan Construction Engineering Testing Co., Ltd. in accordance with applicable standards to evaluate concrete manhole products. The scope includes standard test items, and all results meet the required specifications. For detailed test items, measured values, and evaluation outcomes, please refer to the official inspection report.
II. Product Execution Standard
Our company's concrete inspection well products are manufactured and inspected according to the following standards:
Standard: JC/T 2241-2025 "Prefabricated Concrete Inspection Well"
Manhole Cover Standard: GB/T 23858 "Inspection Manhole Covers"
Installation reference: National Building Standard Design Set 22S521
Impermeability grade: P6, P8 (select based on engineering design)
3. Annual Inspection System
Concrete inspection wells are underground long-term structures where quality stability cannot rely on "batch luck." The company submits samples for annual testing, ensuring each round covers all mass-production specifications in that period. This serves two purposes: first, to maintain third-party verification of outgoing product quality; second, to provide engineering buyers with accessible documentation for acceptance checks.
In addition to annual inspections, the company conducts visual and dimensional checks on every batch of products leaving the factory. Manhole covers, frames, and matching components are shipped only after passing batch-specific inspections.
IV. Tips for Buyers
When procuring concrete manholes for municipal, water utility, and affordable housing projects, you may require third-party test reports as part of supplier qualification. Review the testing agency, applicable standards, and ensure the report matches the supplied specifications. Our test reports are available for your review; please verify them during the inquiry and factory audit stages.
V. Company Profile
Xianghui (Hainan) Cement Products Co., Ltd. is located in Changhua Town, Changjiang Li Autonomous County, Hainan Province. With production bases in 18 cities and counties across Hainan and a workforce of over 100 employees, the company specializes in concrete inspection wells, Class II cement pipes (socket-and-spigot type), curbstones, drainage channel covers, and power inspection wells. As a general VAT taxpayer, its products have been supplied to major projects including China Railway 16th Bureau's Haikou Jiangdong New Area project, China Resources Wanning Shimei Bay project, China Construction Eighth Division's Dongfang Shisuo Village project, Hainan No.7 Construction's Yazhou Bay and Danzhou pollution control projects, Ding'an Sewage Treatment Plant, and Wuzhishan Water Supply and Drainage Project. The company also provided concrete inspection wells for Phase II of the Sanya Haitang Bay Hongfeng Area Old and Dilapidated Housing Renovation and Resettlement Project (supplied in 2025, with renewed cooperation established in 2026 9).
Standard specification concrete inspection manhole delivered within 7 days; in-province delivery arrives in 1 to 3 days.
Consultation hotline: 13976833019
Official Website:https://www.xianghuihainan.com/
