ChangZhou Duane IMP & EXP CO.,LTD manufcture Silicon Carbide Schottky Diode,Ultra Fast Recovery Diode,Thyristor/SCR and Triac Discrete. Our mainly material is from the U.S.A and the Europe ,All of assemble process with the world`s advance technical art , it has very strong quality and good price . Hopes can establish long-term business with you!