All the goods from Jiangsu guotai will under the control of the it’s QC staff, we aslo accept the inspectoin of client’s china office, or the inspection by the third inspection ognization such as SGS. If you don’t have china office, or you think it will a big cost inspected by the third inpection ognization, don’t worry! our QC staff will keep tracking and controlling the quality of the goods you ordered.