Yantai Development Zone Kesheng Electronic Co., Ltd. is a private shareholding enterprise founded on January 16, 2002. Our main products are as following: 1) Quartz crystal units (also called quartz crystal), and the types are: HC-49/U; HC-49/S; HC-49/S-SMD; HC-50/U; SMD-5*7; 206 308 309 3010 column quartz crystal units (clock crystal) 2) Crystal oscillators (also called clock oscillators), and the types are: SMD-5*7; half size (square, DIP-8); full size (rectangle, DIP-14) 3) Ceramic resonances (also called ceramic oscillators), and the types are: all types of SMD ceramic resonances; 2 pin ceramic resonances (2pin); 3 pin ceramic resonances (3pin); ceramic wave filters; ceramic discriminators We warmly welcome clients both at home and abroad to contact us for more information. We hope to establish long term business relation with you on mutual benefits.