Quality Control
Quality Control. Founded in Hong Kong in 1999, Hengsheng delivers traceable and auditable stone solutions built on quarry-direct sourcing, smart manufacturing and global delivery.
Core Strengths
- ISO 9001/14001/50001 systems plus CE, GREENGUARD Gold and NSF/ANSI 51 product certifications.
- Third-party endorsement from SGS, UL Environment and NSF International.
- Complete test reports and compliance documents for tenders and acceptance.
- Certification embodied in practice, from extraction through manufacturing and delivery.
Key Figures
Service Process
- Block intake and mine screening (radioactivity).
- First slab inspection and grading.
- Nesting and CNC machining.
- Assembly/polishing and in-process checks.
- Final inspection and random outbound sampling with full traceability.
Applications
- Tender submissions and compliance review.
- Third-party verification of quality and environmental credentials.
Sustainability & Certification
Solar power (covering over 80% of plant use) and smart energy management with a 30% carbon-reduction target.
95% water recycling and >85% waste utilisation, with offcuts recycled into mosaics, engineered stone and aggregate.
Deep Selection Guide
This capability is realised through a practical selection and delivery plan tailored to the project, backed by traceable materials, documented QC and site-specific guidance.
- Selection criteria：Craft focuses on nesting (yield and veining direction), bookmatch assembly and crystallised finish; five-axis CNC holds ±0.05mm on complex profiles.
- Specification & thickness：Craft focuses on nesting (yield and veining direction), bookmatch assembly and crystallised finish; five-axis CNC holds ±0.05mm on complex profiles.
- Acceptance & records：Every batch ships with test data and image records, traceable by batch code back to the quarry, with dimensional and gloss checks completed before dispatch.
- Sustainability：Waste sorting, reuse, water recycling and solar power together reduce footprint.
Hengsheng manages the full chain from quarry-direct sourcing, smart manufacturing, global delivery and on-site installation. The advantage lies not in a single product but in connecting selection, fabrication, QC and delivery into an auditable loop, giving project teams clear assurance on programme, quality and compliance.
FAQ
- How can certifications be verified?
- We provide the relevant system certificates and third-party test reports for verification.
- Do you support tender compliance?
- Yes — complete test reports and compliance documents are available.