Samsink's quality control is fully integrated across all stages of stainless steel sink manufacturing—from raw material intake and stamping, to welding, surface finishing, functional testing, and final packaging. This end-to-end inspection ensures consistent quality for every stainless steel sink produced.

Samsink ensures material authenticity for every stainless steel sink by requiring Mill Test Certificates (MTC) for all raw materials. In addition, Samsink conducts on-site verification using a handheld PMI (Positive Material Identification) spectrometer to confirm the exact grade (SUS304/SUS316), guaranteeing superior corrosion resistance and long-term durability of each stainless steel sink.

Samsink strictly adheres to international standards—including ISO 9001 (Quality Management), ASTM A240 (material specifications), and NSF/ANSI 51 (food zone safety) - in the manufacturing of every stainless steel sink. Samsink is ISO 9001 certified and can provide third-party test reports upon request to verify the quality and safety of each stainless steel sink.

Yes, Samsink fully supports third-party inspections by SGS, Bureau Veritas (BV), TÜV, or other recognized agencies for every stainless steel sink shipment. Samsink also welcomes on-site buyer audits and offers real-time video inspections (Video Audit) for remote verification.

Samsink maintains tight tolerances of ±0.5mm on critical dimensions of each stainless steel sink, ensuring perfect fit with cabinetry. For every batch, Samsink provides First Article Inspection (FAI) reports and In-Process Quality Control (IPQC) records, available for customer review during audits.

Each stainless steel sink undergoes uniform brushed finish processing with controlled grit levels. Every unit is inspected under dedicated lighting stations to detect scratches, stains, or inconsistencies. Samsink follows AQL sampling standards (Level II) for final visual inspection of all sinks.

Yes. Every shipment of stainless steel sinks includes a detailed English QC report from Samsink containing:Material batch numberKey dimension measurementsTest results (leak, surface, functionality)Inspector ID and production dateThis enables full batch traceability and compliance with international import regulations for every stainless steel sink.