Shenzhen Karen Steiner Micro Technology Co., Ltd. is a large-scale manufacturer which specializes in R&D, designing, producing and selling electronic products. We produce PCB copy board and also supply services like OEM assembly, program development, silicon wafer development, cloning, software interface modifying, chip type identification, chip process binding, chip program entry, chip testing and chip installation. Monthly sales of USD400,000: We have been working with four factories for ...