March 15, 2008 - But, a U.S. company said the quality of its products improved after moving production from Farmingdale, New York, to China. Subcontracting happens in the cases of overextended capacity, expedited orders, machinery failure or shut down of power supply, which occurs frequently in China???s industrial centers. While that might not be doable for orders of millions units, SSI???s Shanghai quality engineer of plastics Clark Wang said factory operators do self-check every product.