QUALITY & COMPLIANCE
Quality Documents That Support Steel Building Procurement.
ZSL combines factory production control, quality management, building-envelope documentation and inspection records to support a clearer technical review before fabrication and delivery planning begin.
PRIMARY CERTIFICATES
Three Core Quality Credentials

STRUCTURAL STEEL
EN 1090 Factory Production Control
2787-CPR-01702
For structural components for steel structures under EN 1090-2, execution class EXC2. The original certificate names ZSL as manufacturer and references EN 1090-1:2009+A1:2011.

QUALITY MANAGEMENT
ISO 9001 Quality Management System
29026Q00046R001
Certified to ISO 9001:2015 / GB/T 19001-2016 for processing steel structure frames and color steel plate, including color steel plate accessories.

BUILDING ENVELOPE
EN 14509 Sandwich Panel Documentation
VCP-12325
For listed color steel sandwich panel models. The original certificate names ZSL as applicant and producer and references EN 14509:2013.
FOR PROJECT TEAMS
Faster Document Review
Core factory, quality-management and product documents are grouped together to support initial supplier and technical review.
FOR PROCUREMENT
Clearer Scope Discussion
Share the product category, destination market and project requirement so the review can focus on the relevant document set.
FOR DELIVERY PLANNING
Evidence Alongside Production
Quality records, inspection information and product documentation can be prepared alongside the project delivery process.
ADDITIONAL TECHNICAL EVIDENCE
Product Documentation
Product documentation is available for steel structure, steel structure members and movable folding container house applications.
Steel Structure DocumentationICR/VC/HS240639 | Q235B / Q355B |
Steel Structure Member DocumentationICR/VC/HS240640 | Q235B / Q355B |
Movable Folding Container HouseICR/VC/HS240641 | 20FT / 30FT / 40FT |
QUALITY & ENGINEERING RECORDS
Inspection and Innovation
INSPECTION EVIDENCE SGS Magnetic Particle TestingReport No. CZNT26061001 | ISO 17638:2016 |
ENGINEERING DEVELOPMENT Steel Structure Welding Treatment DeviceUtility Model Patent Record |
ENGINEERING DEVELOPMENT Extendable ContainerUtility Model Patent Record |
Review the Documents Relevant to Your Project.
Download the Zishenlong qualifications package for an initial review, then send your product type, project location and technical requirement for a focused document discussion.
Download Qualifications PDFRequest Document Review


