Firstly, check the other party’s qualifications, whether they are a high-definition technology enterprise, and whether they have passed ISO9001 and ISO4001 certifications. Secondly, check the other party’s production history and scale. Thirdly, check the source of the other party’s raw materials, such as which steel plant the other party’s spring steel comes from. Fourthly, check whether the other party’s price and delivery time are within a reasonable range. Fifth: Before cooperation, it is recommended to purchase samples for testing.
Steel Wire Brush
Steel Wire Brush for Rust
