TONGYU strictly comply ISO9001 quality system throughout all manufacturing processes and strictly controls product defect ratios per ppm standard. The team conforms to the requirement of quality control regulations and makes sure the flow, from material sourcing to production and shipment, are strictly controlled. Thus we are able to guarantee the stable and reliable quality of our products.
♦ IQC—raw materials : Checking the material, making sure the original materials ,meet the standard regulated by our company.
♦ QA--- Carrying out exclusive tests according to the demand of the clients and the IEC standard , Strict control by IPQC in production.
♦ FQC--- Responsible for the final check of products before shipment so that the quality of the made products are fully guaranteed, assure 100% products with good performance