a) Certificate and label check

  1. UL and ETL and CE and FCC and NSF mark check with file number.
  2. EN 10204 3.1 and 3.2 MTC review and heat number trace.
  3. RoHS and REACH and Prop 65 scope review.

b) Factory background check

  1. Business licence and legal rep and ownership and court search.
  2. ISO 9001 and 14001 and 45001 validity and scope.

c) Product testing and inspection

  1. PMI and hardness and coating and torque proof and leak test and pressure test.
  2. AQL pre shipment and container loading check.

d) Traceability and labeling

  1. Batch and heat and bar code and QR id and carton and pallet rule.

e) Contract and samples

  1. Golden sample lock and penalty clause and substitution ban and change control.