We at Red Star implement strict quality control procedures right from the very beginning, i.e. selecting qualified raw materials. We choose only 2 steel manufacturers from more than 500 steel plants as our raw material suppliers. The key factors for choosing suppliers are not only the high quality of material, but also the corresponding composition ratio for customizing steel wire. Most crucially, our suppliers have to provide SGS inspection reports. SGS is a third party inspection body to test every batch of steel wires, and give test reports accepted by the Ministry of Trade.