Supply Chain Vetting & Quality Control

Quality Starts Before Production

We Don't Just Source — We Vet

Our team selects only ISO/CE certified partner factories within China’s core sauna industrial belt. Then we control every step: raw materials, in-production, finished product. Eliminate quality risks at the source.

Our Quality Control Standards

Stringent parameters for every material type

Solid Wood Accessories

  • Moisture content: 8%-12%
  • Formaldehyde emission: ≤0.02mg/m³
  • EU E0 environmental standard
  • High-temperature corrosion prevention
  • No odor, no deformation

Metal Accessories

  • Corrosion resistance: up to 316L standard
  • Suitable for high-temp environments
  • High-humidity resistance
  • Anti-oxidation processes
  • Long-lasting finish

Full-Process QC

  • Raw material screening
  • In-production inspection
  • Finished product spot-check
  • Outbound re-inspection
  • Final pass rate: 99.9%

Our 4-Stage QC Process

From raw material to finished product

  • 1
    Raw Material

    Wood moisture, metal grade, chemical composition verification

  • 2
    In-Production

    Process monitoring, dimensional checks, workmanship inspection

  • 3
    Pre-Shipment

    Random sampling, final audit, documentation review

  • 4
    Production

    Mass manufacturing with QC

Certifications & Compliance

100% product compliance rate verified by third-party inspections
ETL
Listed Certificate
FCC
Certificate
CE
Certificate
RoHS
Compliance Certificare
FSC
COC Certificate

Secure Your Supply Chain Quality

Join 100+ global clients who trust our vetting process
Request QC Audit →