We treat process control and traceability as part of everyday production, not only end-line inspection. Internal routines cover raw material verification, dimensional checks on extruded sections, and packing verification before release.
According to published company information, the ISO 9001:2015 quality management system is displayed on the linked overseas/export storefront; buyers may request the latest certificate scans or factory registration documents for their files.
For material declarations, routine test reports, or other documentation tied to a specific order, please state the standard or customer template you need — we answer within the limits of what the factory can legitimately provide.