Hangzhou Huaxin Electronic Technology Co., Ltd. is one of the professional manufactories in China Mainland . The company covers an area of 20000M2 , and the plant area is 10000M2 . The company has complete sets of development instruments and inspection equipments . Meanwhile, the company has a group of licensed professional hardware & software development engineers . The products have been sold to most of the domestic provinces and more than 30 oversea countries and regions . The company is certified with GS , CE , CB , PSE , RoHS , CCC , ISO9001:2000 , ISO14001:2004 CERS and 7 National Patents .