It is a newly-emerged company, engaged in designing and manufacturing semiconductors, founded in 2000, near Shanghai City. Our company consistently insists on the principle of "Providing Quality Products, Reasonable Price, Considerable and Consumers-Satisfied Service". Owning well-trained workers, we now have established a complete set of quality guarantee system. With the capability of design, development, production and package, we can manufacture according to customers' special requirements. Up to date, over 80% of our "Huanzhou" brand products have been sold in the Middle East, America and Southeast Asia. Our products are mainly STPASA series solid state arrestors, 3DD series transistors, 2SD series high voltage transistors, special acoustics paired transistors and energy-saving lamp electronic rectifier-used 1300 series transistors, unilateral and bidirectional thyristors, Darlington series transistors, Scotty diode series and omnidirectional electrets condenser microphones. If you are interested in any of our products, please feel free to contact us for more information. We are looking forward to forming business relations with customers from all over the world.
