Hangzhou Hanan Semiconductors Co.,Ltd, Security is a company specializing in the production of semiconductor silicon-controlled large-scale enterprises, there are two kinds of thyristor and modules. The company's products mainly to the large-scale whole plant facilities, high-end products such as KK3000A/3000V, KK3000A/2500V, KP2200A/6000V, the main drag for a second casting of large-scale equipment, such as the United States Inductotherm Corp, Xi'an Mechanical & Electric Institute and Copyright Suzhou Zhenwu Electric Furnace Co., Ltd. Mid-range products such as KK2500A/2500V,KK3000A/2500V,2500A/2700V,KP2000A/4000V,KP2500A/3500V, mainly used for large-scale smelting equipment, such as Hangzhou Sida Machine Electron Co., Ltd. 40T, 30T, 25T, 20T, Shanghai Zhaoli Electrical Make Co.,Ltd 20T, 12T, 10T, 8T, etc.